<pre>Network Working Group                                        J. Reynolds
Request for Comments: 900                                      J. Postel
                                                                     ISI
Obsoletes RFCs:  <a href="./rfc870">870</a>, <a href="./rfc820">820</a>,                                     June 1984
<a href="./rfc790">790</a>, <a href="./rfc776">776</a>, <a href="./rfc770">770</a>, <a href="./rfc762">762</a>, <a href="./rfc758">758</a>, <a href="./rfc755">755</a>,
750, 739, 604, 503, 433, 349
Obsoletes IENs:  127, 117, 93


                            <span class="h1">ASSIGNED NUMBERS</span>


Status of this Memo

   This memo is an official status report on the numbers used in
   protocols in the ARPA-Internet community.

Introduction

   This Network Working Group Request for Comments documents the
   currently assigned values from several series of numbers used in
   network protocol implementations.  This RFC will be updated
   periodically, and in any case current information can be obtained
   from Joyce Reynolds.  The assignment of numbers is also handled by
   Joyce.  If you are developing a protocol or application that will
   require the use of a link, socket, port, protocol, network number,
   etc., please contact Joyce to receive a number assignment.

      Joyce Reynolds
      USC - Information Sciences Institute
      4676 Admiralty Way
      Marina del Rey, California  90292-6695

      Phone: (213) 822-1511

      ARPA mail: JKREYNOLDS@USC-ISIF.ARPA

   Most of the protocols mentioned here are documented in the RFC series
   of notes.  The more prominent and more generally used are documented
   in the "Internet Protocol Transition Workbook" [<a href="#ref-31" title="&quot;Internet Protocol Transition Workbook&quot;">31</a>] or in the old
   "ARPANET Protocol Handbook" [<a href="#ref-32" title="&quot;ARPANET Protocol Handbook&quot;">32</a>] prepared by the NIC.  Some of the
   items listed are undocumented.  Further information on protocols can
   be found in the memo "Official Protocols" [<a href="#ref-83" title="&quot;Official Protocols&quot;">83</a>].

   In all cases the name and mailbox of the responsible individual is
   indicated.  In the lists that follow, a bracketed entry, e.g.,
   [<a href="#ref-31" title="&quot;Internet Protocol Transition Workbook&quot;">31</a>,iii], at the right hand margin of the page indicates a reference
   for the listed protocol, where the number cites the document and the
   "iii" cites the person.  Whenever possible, this "iii" is a NIC
   Ident.




<span class="grey">Reynolds &amp; Postel                                               [Page 1]</span></pre>
<hr class='noprint'/><!--NewPage--><pre class='newpage'><span id="page-2" ></span>
<span class="grey">Assigned Numbers                                                 <a href="./rfc900">RFC 900</a></span>
Network Numbers


                        ASSIGNED NETWORK NUMBERS

   The network numbers listed here are used as internet addresses by the
   Internet Protocol (IP) [<a href="#ref-31" title="&quot;Internet Protocol Transition Workbook&quot;">31</a>,<a href="#ref-71" title="&quot;Internet Protocol - DARPA Internet Program Protocol Specification&quot;">71</a>].  The IP uses a 32-bit address field
   and divides that address into a network part and a "rest" or local
   address part.  The division takes 3 forms or classes.

      The first type of address, or class A, has a 7-bit network number
      and a 24-bit local address.  The highest-order bit is set to 0.
      This allows 128 class A networks.

                           1                   2                   3
       0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
      |0|   NETWORK   |                Local Address                  |
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

                             Class A Address

      The second type of address, class B, has a 14-bit network number
      and a 16-bit local address.  The two highest-order bits are set to
      1-0.  This allows 16,384 class B networks.

                           1                   2                   3
       0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
      |1 0|           NETWORK         |          Local Address        |
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

                             Class B Address

      The third type of address, class C, has a 21-bit network number
      and a 8-bit local address.  The three highest-order bits are set
      to 1-1-0.  This allows 2,097,152 class C networks.

                           1                   2                   3
       0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
      |1 1 0|                    NETWORK              | Local Address |
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

                             Class C Address

      Note:  No addresses are allowed with the three highest-order bits
      set to 1-1-1.  These addresses (sometimes called "class D") are
      reserved.




<span class="grey">Reynolds &amp; Postel                                               [Page 2]</span></pre>
<hr class='noprint'/><!--NewPage--><pre class='newpage'><span id="page-3" ></span>
<span class="grey">Assigned Numbers                                                 <a href="./rfc900">RFC 900</a></span>
Network Numbers


   One commonly used notation for internet host addresses divides the
   32-bit address into four 8-bit fields and specifies the value of each
   field as a decimal number with the fields separated by periods.  This
   is called the "dotted decimal" notation.  For example, the internet
   address of USC-ISIF.ARPA in dotted decimal is 010.002.000.052, or
   10.2.0.52.

   The dotted decimal notation will be used in the listing of assigned
   network numbers.  The class A networks will have nnn.rrr.rrr.rrr, the
   class B networks will have nnn.nnn.rrr.rrr, and the class C networks
   will have nnn.nnn.nnn.rrr, where nnn represents part or all of a
   network number and rrr represents part or all of a local address.

   There are four catagories of users of Internet Addresses: Research,
   Defense, Government (Non-Defense), and Commercial.  To reflect the
   allocation of network identifiers among the categories, a
   one-character code is placed to the left of the network number: R for
   Research, D for Defense, G for Government, and C for Commercial (see
   <a href="#appendix-A">Appendix A</a> for further details on this division of the network
   identification).

   Network numbers are assigned for networks that are connected to the
   ARPA-Internet and DDN-Internet, and for independent networks that use
   the IP family protocols (these are usually commercial).  These
   independent networks are marked with an asterisk preceeding the
   number.

   The administrators of independent networks must apply separately for
   permission to interconnect their network with either the
   ARPA-Internet of the DDN-Internet.  Independent networks need not be
   listed in the working tables of either the ARPA-Internet or
   DDN-Internet hosts or gateways.

   For various reasons, the assigned numbers of networks are sometimes
   changed.  To ease the transition the old number will be listed for a
   transition period as well.  These "old number" entries will be marked
   with a "T" following the number and preceeding the name, and the
   network name will be suffixed "-TEMP".












<span class="grey">Reynolds &amp; Postel                                               [Page 3]</span></pre>
<hr class='noprint'/><!--NewPage--><pre class='newpage'><span id="page-4" ></span>
<span class="grey">Assigned Numbers                                                 <a href="./rfc900">RFC 900</a></span>
Network Numbers


   Assigned Network Numbers

   Class A Networks

      * Internet Address  Name          Network               References
      - ----------------  ----          -------               ----------
        000.rrr.rrr.rrr                 Reserved                   [JBP]
      R 004.rrr.rrr.rrr   SATNET        Atlantic Satellite Network[DM11]
      D 006.rrr.rrr.rrr T YPG-NET-TEMP  Yuma Proving Grounds     [<a href="#ref-7" title="&quot;Specifications for the Interconnection of a Host and an IMP&quot;">7</a>,BXA]
      D 007.rrr.rrr.rrr T EDN-TEMP      DCEC EDN                   [EC5]
      R 008.rrr.rrr.rrr T BBN-NET-TEMP  BBN Network               [JSG5]
      R 010.rrr.rrr.rrr   ARPANET       ARPANET              [<a href="#ref-7" title="&quot;Specifications for the Interconnection of a Host and an IMP&quot;">7</a>,<a href="#ref-32" title="&quot;ARPANET Protocol Handbook&quot;">32</a>,REK2]
      D 011.rrr.rrr.rrr   DODIIS        DoD INTEL INFO SYS         [AY7]
      C 012.rrr.rrr.rrr   ATT           ATT, Bell Labs            [MH13]
      C 014.rrr.rrr.rrr   PDN           Public Data Network       [REK4]
      R 018.rrr.rrr.rrr T MIT-TEMP      MIT Network         [<a href="#ref-15" title="&quot;Revision of DSP Specification&quot;">15</a>,<a href="#ref-82" title="&quot;Protocols for the LCS Network&quot;">82</a>,DDC2]
      D 023.rrr.rrr.rrr   DDN-TC-NET    DDN-TestCell-Network       [DXH]
      D 024.rrr.rrr.rrr   MINET         MINET                    [<a href="#ref-7" title="&quot;Specifications for the Interconnection of a Host and an IMP&quot;">7</a>,DHH]
      R 025.rrr.rrr.rrr   RSRE-EXP      RSRE Experimental           [NM]
      D 026.rrr.rrr.rrr   MILNET        MILNET                    [FLM2]
      R 027.rrr.rrr.rrr T NOSC-LCCN-TEMPNOSC / LCCN                [RH6]
      R 028.rrr.rrr.rrr   WIDEBAND      Wide Band Satellite Net   [CJW2]
      R 032.rrr.rrr.rrr   UCL-TAC       UCL TAC                     [PK]
      R 036.rrr.rrr.rrr T SU-NET-TEMP   Stanford University Network[JCM]
      R 039.rrr.rrr.rrr T SRINET-TEMP   SRI Local Network         [GEOF]
      R 041.rrr.rrr.rrr   BBN-TEST-A    BBN-GATE-TEST-A            [RH6]
      R 044.rrr.rrr.rrr   AMPRNET       Amateur Radio Experiment Net[HM]
        001.rrr.rrr.rrr-003.rrr.rrr.rrr Unassigned                 [JBP]
        005.rrr.rrr.rrr                 Unassigned                 [JBP]
        009.rrr.rrr.rrr                 Unassigned                 [JBP]
        013.rrr.rrr.rrr                 Unassigned                 [JBP]
        015.rrr.rrr.rrr-017.rrr.rrr.rrr Unassigned                 [JBP]
        019.rrr.rrr.rrr-022.rrr.rrr.rrr Unassigned                 [JBP]
        029.rrr.rrr.rrr-031.rrr.rrr.rrr Unassigned                 [JBP]
        033.rrr.rrr.rrr-035.rrr.rrr.rrr Unassigned                 [JBP]
        037.rrr.rrr.rrr-038.rrr.rrr.rrr Unassigned                 [JBP]
        040.rrr.rrr.rrr                 Unassigned                 [JBP]
        042.rrr.rrr.rrr-043.rrr.rrr.rrr Unassigned                 [JBP]
        045.rrr.rrr.rrr-126.rrr.rrr.rrr Unassigned                 [JBP]
        127.rrr.rrr.rrr                 Reserved                   [JBP]










<span class="grey">Reynolds &amp; Postel                                               [Page 4]</span></pre>
<hr class='noprint'/><!--NewPage--><pre class='newpage'><span id="page-5" ></span>
<span class="grey">Assigned Numbers                                                 <a href="./rfc900">RFC 900</a></span>
Network Numbers


   Class B Networks

      * Internet Address  Name          Network               References
      - ----------------  ----          -------               ----------
        128.000.rrr.rrr                 Reserved                   [JBP]
      R 128.001.rrr.rrr   BBN-TEST-B    BBN-GATE-TEST-B            [RH6]
      R 128.002.rrr.rrr   CMU-NET       CMU-Ethernet              [HDW2]
      R 128.003.rrr.rrr   LBL-CSAM      LBL-CSAM-RESEARCH         [JS38]
      R 128.004.rrr.rrr   DCNET         LINKABIT DCNET         [<a href="#ref-52" title="&quot;DCN Local-Network Protocols&quot;">52</a>,DLM1]
      R 128.005.rrr.rrr   FORDNET       FORD DCNET             [<a href="#ref-52" title="&quot;DCN Local-Network Protocols&quot;">52</a>,DLM1]
      R 128.006.rrr.rrr   RUTGERS       RUTGERS                   [CLH3]
      R 128.007.rrr.rrr   DFVLR         DFVLR DCNET Network       [HDC1]
      R 128.008.rrr.rrr   UMDNET        Univ of Maryland DCNET [<a href="#ref-52" title="&quot;DCN Local-Network Protocols&quot;">52</a>,DLM1]
      R 128.009.rrr.rrr   ISI-NET       USC-ISI Local Network      [CMR]
      R 128.010.rrr.rrr   PURDUE-CS     Purdue Computer Science    [CAK]
      R 128.011.rrr.rrr   BBN-CRONUS    BBN DOS Project         [<a href="#ref-48" title="&quot;The CRONUS Virtual Local Network&quot;">48</a>,WIM]
      R 128.012.rrr.rrr   SU-NET        Stanford University Net    [JCM]
      D 128.013.rrr.rrr   MATNET        Mobile Access Terminal Net[DM11]
      R 128.014.rrr.rrr   BBN-SAT-TEST  BBN SATNET Test Net       [DM11]
      R 128.015.rrr.rrr   S1NET         LLL-S1-NET                [EAK1]
      R 128.016.rrr.rrr   UCLNET        University College London   [PK]
      D 128.017.rrr.rrr   MATNET-ALT    Mobile Access Terminal Alt[DM11]
      R 128.018.rrr.rrr   SRINET        SRI Local Network         [GEOF]
      D 128.019.rrr.rrr   EDN           DCEC EDN                   [EC5]
      D 128.020.rrr.rrr   BRLNET        BRLNET                  [<a href="#ref-7" title="&quot;Specifications for the Interconnection of a Host and an IMP&quot;">7</a>,MJM2]
      R 128.021.rrr.rrr   SF-PR-1       SF-1 Packet Radio Network  [JEM]
      R 128.022.rrr.rrr   SF-PR-2       SF-2 Packet Radio Network  [JEM]
      R 128.023.rrr.rrr   BBN-PR        BBN Packet Radio Network  [JAW3]
      R 128.024.rrr.rrr   ROCKWELL-PR   Rockwell Packet Radio Net  [EHP]
      D 128.025.rrr.rrr   BRAGG-PR      Ft. Bragg Packet Radio Net [JEM]
      D 128.026.rrr.rrr   SAC-PR        SAC Packet Radio Network   [BG5]
      D 128.027.rrr.rrr   DEMO-PR-1     Demo-1 Packet Radio Network[LCS]
      D 128.028.rrr.rrr   C3-PR         Testbed Development PR NET [BG5]
      R 128.029.rrr.rrr   MITRE         MITRE Cablenet          [<a href="#ref-86" title="&quot;The MITRE Cablenet Project&quot;">86</a>,APS]
      R 128.030.rrr.rrr   MIT-NET       MIT Local Network         [DDC2]
      R 128.031.rrr.rrr   MIT-RES       MIT Research Network      [DDC2]
      R 128.032.rrr.rrr   UCB-ETHER     UC Berkeley Ethernet      [DAM1]
      R 128.033.rrr.rrr   BBN-NET       BBN Network               [JSG5]
      R 128.034.rrr.rrr   NOSC-LCCN     NOSC / LCCN                [RH6]
      R 128.035.rrr.rrr   CISLTESTNET1  Honeywell            [<a href="#ref-43" title="&quot;AFSDSC Hyperchannel RPQ Project Plan&quot;">43</a>,<a href="#ref-44" title="&quot;Multics MR11 PFS&quot;">44</a>,RK1]
      R 128.036.rrr.rrr   YALE-NET      YALE NET                [<a href="#ref-96" title="&quot;The Ethernet, A Local Area Network: Data Link Layer and Physical Layer Specification&quot;">96</a>,JO5]
      D 128.037.rrr.rrr   YPG-NET       Yuma Proving Grounds     [<a href="#ref-7" title="&quot;Specifications for the Interconnection of a Host and an IMP&quot;">7</a>,BXA]
      D 128.038.rrr.rrr   NSWC-NET      NSWC Local Host Net       [RLH2]
      R 128.039.rrr.rrr   NTANET        NDRE-TIU                   [PS3]
      R 128.040.rrr.rrr   UCL-NET-A     UCL                        [RC7]
      R 128.041.rrr.rrr   UCL-NET-B     UCL                        [RC7]
      R 128.042.rrr.rrr   RICE-NET      Rice University Net  [<a href="#ref-52" title="&quot;DCN Local-Network Protocols&quot;">52</a>,<a href="#ref-96" title="&quot;The Ethernet, A Local Area Network: Data Link Layer and Physical Layer Specification&quot;">96</a>,PGM]
      R 128.043.rrr.rrr   CRANET        CANADA REF ARPANET      [<a href="#ref-7" title="&quot;Specifications for the Interconnection of a Host and an IMP&quot;">7</a>,JR17]


<span class="grey">Reynolds &amp; Postel                                               [Page 5]</span></pre>
<hr class='noprint'/><!--NewPage--><pre class='newpage'><span id="page-6" ></span>
<span class="grey">Assigned Numbers                                                 <a href="./rfc900">RFC 900</a></span>
Network Numbers


      D 128.044.rrr.rrr   WSMR-NET      White Sands Network        [TBS]
      D 128.045.rrr.rrr   DODIIS-S1     DoD INTEL INFO SYS         [AY5]
      D 128.046.rrr.rrr   DODIIS-S2     DoD INTEL INFO SYS         [AY5]
      D 128.047.rrr.rrr   TACTNET       Tactical Packet Net      [<a href="#ref-6" title="&quot;Packet Switched Overlay to Tactical Multichannel/Satellite Systems&quot;">6</a>,KTP]
      C*128.048.rrr.rrr   UCDLA-NET     UCDLA MELVYL Network     [<a href="#ref-7" title="&quot;Specifications for the Interconnection of a Host and an IMP&quot;">7</a>,CXL]
      R 128.049.rrr.rrr   NOSC-ETHER    NOSC Ethernet          [<a href="#ref-96" title="&quot;The Ethernet, A Local Area Network: Data Link Layer and Physical Layer Specification&quot;">96</a>,RLB3]
      G 128.050.rrr.rrr   COINS Network COINS On-Line Intel Net    [RXS]
      G 128.051.rrr.rrr   COINSTNET     COINS TEST NETWORK         [RXS]
      R 128.052.rrr.rrr   MIT-AI-NET    MIT AI NET              [<a href="#ref-96" title="&quot;The Ethernet, A Local Area Network: Data Link Layer and Physical Layer Specification&quot;">96</a>,MDC]
      R 128.053.rrr.rrr   SAC-PR-2      SAC PRNET Number 2         [BG5]
        128.054.rrr.rrr-191.254.rrr.rrr Unassigned                 [JBP]
        191.255.rrr.rrr                 Reserved                   [JBP]

   Class C Networks

      * Internet Address  Name          Network               References
      - ----------------  ----          -------               ----------
        192.000.000.rrr                 Reserved                   [JBP]
      R 192.000.001.rrr   BBN-TEST-C    BBN-GATE-TEST-C            [RH6]
        192.000.002.rrr-192.000.255.rrr Unassigned                 [JBP]
      R 192.001.000.rrr-192.003.255.rrr BBN local networks         [SGC]
        192.004.000.rrr-192.004.255.rrr Unassigned                 [JBP]
      R 192.005.001.rrr   CISLHYPERNET  Honeywell                  [RK1]
      R 192.005.002.rrr   WISC          Univ of Wisconsin Madison [RS23]
      C 192.005.003.rrr   HP-DESIGN-AIDS HP Design Aids            [NXK]
      C 192.005.004.rrr   HP-TCG-UNIX   Hewlett Packard TCG Unix   [NXK]
      R 192.005.005.rrr   DEC-MRNET     DEC Marlboro Ethernet   [<a href="#ref-92" title="&quot;The Ethernet, a Local Area Network: Data Link Layer and Physical Layer Specification&quot;">92</a>,KWP]
      R 192.005.006.rrr   DEC-MRRAD     DEC Marlboro Developmt  [<a href="#ref-92" title="&quot;The Ethernet, a Local Area Network: Data Link Layer and Physical Layer Specification&quot;">92</a>,KWP]
      R 192.005.007.rrr   CIT-CS-NET    Caltech-CS-Net          [<a href="#ref-95" title="&quot;The Caltech Computer Science Department Network&quot;">95</a>,DSW]
      R 192.005.008.rrr   WASHINGTON    University of Washington  [JAR4]
      R 192.005.009.rrr   AERONET       Aerospace Labnet         [<a href="#ref-2" title="ATM-83(3920-01)-3">2</a>,LCN]
      R 192.005.010.rrr   ECLNET        USC-ECL-CAMPUS-NET         [MXB]
      R 192.005.011.rrr   CSS-RING      SEISMIC-RESEARCH-NET       [RR2]
      R 192.005.012.rrr   UTAH-NET      UTAH-COMPUTER-SCIENCE-NET  [RF1]
      R 192.005.013.rrr   CCNET         Compion Network         [<a href="#ref-96" title="&quot;The Ethernet, A Local Area Network: Data Link Layer and Physical Layer Specification&quot;">96</a>,FAS]
      R 192.005.014.rrr   RAND-NET      RAND Network            [<a href="#ref-96" title="&quot;The Ethernet, A Local Area Network: Data Link Layer and Physical Layer Specification&quot;">96</a>,JDG]
      R 192.005.015.rrr   NYU-NET       NYU Network                [EF5]
      R 192.005.016.rrr   LANL-LAND     Los Alamos Dev LAN     [<a href="#ref-96" title="&quot;The Ethernet, A Local Area Network: Data Link Layer and Physical Layer Specification&quot;">96</a>,JC11]
      R 192.005.017.rrr   NRL-NET       Naval Research Lab          [AP]
      R 192.005.018.rrr   IPTO-NET      ARPA-IPTO Office Net      [REK2]
      R 192.005.019.rrr   UCIICS        UCI-ICS Res Net            [MXR]
      R 192.005.020.rrr   CISLTTYNET    Honeywell                  [RK1]
      D 192.005.021.rrr   BRLNET1       BRLNET1                 [<a href="#ref-7" title="&quot;Specifications for the Interconnection of a Host and an IMP&quot;">7</a>,MJM2]
      D 192.005.022.rrr   BRLNET2       BRLNET2                 [<a href="#ref-7" title="&quot;Specifications for the Interconnection of a Host and an IMP&quot;">7</a>,MJM2]
      D 192.005.023.rrr   BRLNET3       BRLNET3                 [<a href="#ref-7" title="&quot;Specifications for the Interconnection of a Host and an IMP&quot;">7</a>,MJM2]
      D 192.005.024.rrr   BRLNET4       BRLNET4                 [<a href="#ref-7" title="&quot;Specifications for the Interconnection of a Host and an IMP&quot;">7</a>,MJM2]
      D 192.005.025.rrr   BRLNET5       BRLNET5                 [<a href="#ref-7" title="&quot;Specifications for the Interconnection of a Host and an IMP&quot;">7</a>,MJM2]
      D 192.005.026.rrr   NSRDCOA-NET   NSRDC Office Auto Net      [TC4]


<span class="grey">Reynolds &amp; Postel                                               [Page 6]</span></pre>
<hr class='noprint'/><!--NewPage--><pre class='newpage'><span id="page-7" ></span>
<span class="grey">Assigned Numbers                                                 <a href="./rfc900">RFC 900</a></span>
Network Numbers


      D 192.005.027.rrr   DTNSRDC-NET   DTNSRDC-NET                [TC4]
      R 192.005.028.rrr   RSRE-NULL     RSRE-NULL                   [NM]
      R 192.005.029.rrr   RSRE-ACC      RSRE-ACC                    [NM]
      R 192.005.030.rrr   RSRE-PR       RSRE-PR                     [NM]
      R*192.005.031.rrr   SIEMENS-NET   Siemens Research Network   [PXN]
      R 192.005.032.rrr   CISLTESTNET2  Honeywell            [<a href="#ref-43" title="&quot;AFSDSC Hyperchannel RPQ Project Plan&quot;">43</a>,<a href="#ref-44" title="&quot;Multics MR11 PFS&quot;">44</a>,RK1]
      R 192.005.033.rrr   CISLTESTNET3  Honeywell            [<a href="#ref-27" title="&quot;Telnet Output Vertical Tab Disposition Option&quot;">27</a>,<a href="#ref-28" title="&quot;Telnet Output Vertical Tabstops Option&quot;">28</a>,RK1]
      R 192.005.034.rrr   CISLTESTNET4  Honeywell            [<a href="#ref-27" title="&quot;Telnet Output Vertical Tab Disposition Option&quot;">27</a>,<a href="#ref-28" title="&quot;Telnet Output Vertical Tabstops Option&quot;">28</a>,RK1]
      R 192.005.035.rrr   RIACS         USRA                   [<a href="#ref-96" title="&quot;The Ethernet, A Local Area Network: Data Link Layer and Physical Layer Specification&quot;">96</a>,RLB1]
      R 192.005.036.rrr   CORNELL-CS    CORNELL CS Research     [<a href="#ref-96" title="&quot;The Ethernet, A Local Area Network: Data Link Layer and Physical Layer Specification&quot;">96</a>,DK2]
      R 192.005.037.rrr   UR-CS-NET     U of R CS 3Mb Net       [<a href="#ref-51" title="&quot;Ethernet: Distributed Packet Switching for Local Computer Networks&quot;">51</a>,LB1]
      R 192.005.038.rrr   SRI-C3ETHER   SRI-AITAD C3ETHERNET    [<a href="#ref-96" title="&quot;The Ethernet, A Local Area Network: Data Link Layer and Physical Layer Specification&quot;">96</a>,BG5]
      R 192.005.039.rrr   UDEL-EECIS    Udel EECIS LAN          [<a href="#ref-93" title="&quot;The Ethernet - A Local Area Network&quot;">93</a>,CC2]
      R 192.005.040.rrr   PUCC-NET-A    PURDUE Comp Cntr Net       [JXS]
      D 192.005.041.rrr   WISLAN        WIS Research LAN       [<a href="#ref-86" title="&quot;The MITRE Cablenet Project&quot;">86</a>,JRM1]
      D 192.005.042.rrr   AFDSC-HYPER   AFDSC Hypernet            [MCSJ]
      R 192.005.043.rrr   CUCSNET       Columbia CS Net         [<a href="#ref-96" title="&quot;The Ethernet, A Local Area Network: Data Link Layer and Physical Layer Specification&quot;">96</a>,LH2]
      R 192.005.044.rrr   Farber-PC-Net Farber PC Network          [DJF]
      R 192.005.045.rrr   AIDS-NET      AI&amp;DS Network            [<a href="#ref-96" title="&quot;The Ethernet, A Local Area Network: Data Link Layer and Physical Layer Specification&quot;">96</a>,HA]
      R 192.005.046.rrr   NTA-RING      NDRE-RING                  [PS3]
      R 192.005.047.rrr   NSRDC         NSRDC                      [PXM]
      R 192.005.048.rrr   PURDUE-CS-IL  Purdue CS IL Ethernet   [<a href="#ref-96" title="&quot;The Ethernet, A Local Area Network: Data Link Layer and Physical Layer Specification&quot;">96</a>,CAK]
      R 192.005.049.rrr   UCSF          Univ of Calif, San Fran [<a href="#ref-93" title="&quot;The Ethernet - A Local Area Network&quot;">93</a>,TXF]
      R 192.005.050.rrr   CTH-CS-NET    Chalmers CSN Local Net  [<a href="#ref-93" title="&quot;The Ethernet - A Local Area Network&quot;">93</a>,<a href="#ref-UXB">UXB</a>]
      R 192.005.051.rrr   Theorynet     Cornell Theory Center  [<a href="#ref-96" title="&quot;The Ethernet, A Local Area Network: Data Link Layer and Physical Layer Specification&quot;">96</a>,<a href="#ref-AB13">AB13</a>]
      R 192.005.052.rrr   NLM-ETHER     NLM-LHNCBC-ETHERNET     [<a href="#ref-71" title="&quot;Internet Protocol - DARPA Internet Program Protocol Specification&quot;">71</a>,JA1]
      R 192.005.053.rrr   UR-CS-ETHER   U of R CS 10Mb Net      [<a href="#ref-51" title="&quot;Ethernet: Distributed Packet Switching for Local Computer Networks&quot;">51</a>,LB1]
      R 192.005.054.rrr   AERO-A6       Aerospace                [<a href="#ref-2" title="ATM-83(3920-01)-3">2</a>,LCN]
      R 192.005.055.rrr   UCLA-CECS     UCLA-CECS Network       [<a href="#ref-96" title="&quot;The Ethernet, A Local Area Network: Data Link Layer and Physical Layer Specification&quot;">96</a>,RBW]
      C 192.005.056.rrr   TARTAN-NET    Tartan Labs                [SXB]
      R 192.005.057.rrr   UDEL-CC       UDEL Comp Center        [<a href="#ref-93" title="&quot;The Ethernet - A Local Area Network&quot;">93</a>,RXR]
      R 192.005.058.rrr   CSNET-PDN     CSNET X.25 Network     [<a href="#ref-47" title="&quot;A Standard for the Transmission of IP Datagrams Over Public Data Networks&quot;">47</a>,RDR4]
      R*192.005.059.rrr   Inria SM90    Inria GIP SM-90            [MXS]
      R*192.005.060.rrr   SM90 X1       Inria SM-90 exp. 1         [MXS]
      R*192.005.061.rrr   SM90 X2       Inria SM-90 exp. 2         [MXS]
      R*192.005.062.rrr   LITP SM90     LITP SM-90                 [MXS]
      R 192.005.064.rrr   AMES-NAS-NET  NASA ARC NAS LAN       [<a href="#ref-92" title="&quot;The Ethernet, a Local Area Network: Data Link Layer and Physical Layer Specification&quot;">92</a>, MXF]
      R 192.005.065.rrr   NPRDC-Ether   NPRDC TRCF Ethernet        [LRB]
      R 192.005.066.rrr   HARV-NET      Harvard Comp Sci Net      [SXB1]
      R 192.005.067.rrr   CECOM-ETHER   CECOM ADDCOMPE ETHER    [<a href="#ref-93" title="&quot;The Ethernet - A Local Area Network&quot;">93</a>,GXH]
      R 192.005.068.rrr   AERO-130      AEROSPACE-130              [LCN]
      R 192.005.069.rrr   UIUC-NET      Univ of IL at Urbana    [<a href="#ref-96" title="&quot;The Ethernet, A Local Area Network: Data Link Layer and Physical Layer Specification&quot;">96</a>,AXC]
      G 192.005.070.rrr   CELAN         COINS Exper. LAN           [MXM]
      R 192.005.071.rrr   SAC-ETHER     SAC C3 Ethernet         [<a href="#ref-96" title="&quot;The Ethernet, A Local Area Network: Data Link Layer and Physical Layer Specification&quot;">96</a>,BG5]
      R*192.005.072.rrr-192.005.087.rrr U Chicago                  [TXN]
      R 192.005.088.rrr   YALE-EE-NET   YALE-EE-NET            [<a href="#ref-96" title="&quot;The Ethernet, A Local Area Network: Data Link Layer and Physical Layer Specification&quot;">96</a>,AXG1]
      R 192.005.089.rrr   UTEXAS        U. Texas Austin Net    [<a href="#ref-96" title="&quot;The Ethernet, A Local Area Network: Data Link Layer and Physical Layer Specification&quot;">96</a>,JSQ1]
        192.005.090.rrr-192.005.255.rrr Unassigned                 [JBP]


<span class="grey">Reynolds &amp; Postel                                               [Page 7]</span></pre>
<hr class='noprint'/><!--NewPage--><pre class='newpage'><span id="page-8" ></span>
<span class="grey">Assigned Numbers                                                 <a href="./rfc900">RFC 900</a></span>
Network Numbers


      C*192.006.000.rrr-192.006.255.rrr Hewlett Packard            [AXG]
      C*192.007.000.rrr-192.007.255.rrr Computer Consoles, Inc.   [RA11]
      C*192.008.000.rrr-192.008.255.rrr Spartacus Computers, Inc.  [SXM]
      C*192.009.000.rrr-192.009.255.rrr SUN Microsystem, Inc.      [WNJ]
      C*192.010.000.rrr-192.010.040.rrr Symbolics, Inc.            [CH2]
      R 192.010.041.rrr   SCRC-ETHERNET SCRC ETHERNET           [<a href="#ref-96" title="&quot;The Ethernet, A Local Area Network: Data Link Layer and Physical Layer Specification&quot;">96</a>,CH2]
      C*192.010.042.rrr-192.010.255.rrr Symbolics, Inc.            [CH2]
      C*192.011.000.rrr-192.011.255.rrr ATT, Bell Labs            [MH12]
      C*192.012.000.rrr   CADMUS        CADMUS-NET                 [MS9]
      C*192.012.001.rrr   CADMUS-EXP-1  CADMUS-NET-EXP-1           [MS9]
      C*192.012.002.rrr   CADMUS-EXP-2  CADMUS-NET-EXP-2           [MS9]
      C*192.012.003.rrr   FLAIR         Fairchild AI Lab Net   [<a href="#ref-96" title="&quot;The Ethernet, A Local Area Network: Data Link Layer and Physical Layer Specification&quot;">96</a>,AMS1]
      C*192.012.004.rrr   SCG-NET       Hughes SCG Net          [<a href="#ref-96" title="&quot;The Ethernet, A Local Area Network: Data Link Layer and Physical Layer Specification&quot;">96</a>,<a href="#ref-MXP">MXP</a>]
        192.012.005.rrr-223.255.254.rrr Unassigned                 [JBP]
        223.255.255.rrr                 Reserved                   [JBP]

   Other Reserved Internet Addresses

      * Internet Address  Name          Network               References
      - ----------------  ----          -------               ----------
        224.000.000.000-255.255.255.255 Reserved                   [JBP]

   Network Totals

      Assigned for the ARPA-Internet and the DDN-Internet

         Class         A         B         C     Total

         Research      7        36       824       867

         Defense       4        14         9        27

         Government    0         2         1         3

         Commercial    2         0         3         5

         Total        13        52       837       902













<span class="grey">Reynolds &amp; Postel                                               [Page 8]</span></pre>
<hr class='noprint'/><!--NewPage--><pre class='newpage'><span id="page-9" ></span>
<span class="grey">Assigned Numbers                                                 <a href="./rfc900">RFC 900</a></span>
Network Numbers


      Allocated for Internet and Independent Uses

         Class         A         B         C     Total

         Research      7        36       845       888

         Defense       4        14         9        27

         Government    0         2         1         3

         Commercial    2         1      1543      1546

         Total        13        53      2398      2464

      Maximum Allowed

         Class         A         B         C     Total

         Research      8      1024     65536     66568

         Defense      24      3072    458752    461848

         Government   24      3072    458752    461848

         Commercial   74      9214   1114137   1123394

         Total       126     16382   2097150   2113658























<span class="grey">Reynolds &amp; Postel                                               [Page 9]</span></pre>
<hr class='noprint'/><!--NewPage--><pre class='newpage'><span id="page-10" ></span>
<span class="grey">Assigned Numbers                                                 <a href="./rfc900">RFC 900</a></span>
Version Numbers


                        ASSIGNED VERSION NUMBERS

   In the Internet Protocol (IP) [<a href="#ref-31" title="&quot;Internet Protocol Transition Workbook&quot;">31</a>,<a href="#ref-71" title="&quot;Internet Protocol - DARPA Internet Program Protocol Specification&quot;">71</a>] there is a field to identify
   the version of the internetwork general protocol.  This field is 4
   bits in size.

   Assigned Internet Version Numbers

      Decimal   Keyword    Version                            References
      -------   -------    -------                            ----------
          0                Reserved                                [JBP]
        1-3                Unassigned                              [JBP]
          4       IP       Internet Protocol                 [<a href="#ref-31" title="&quot;Internet Protocol Transition Workbook&quot;">31</a>,<a href="#ref-71" title="&quot;Internet Protocol - DARPA Internet Program Protocol Specification&quot;">71</a>,JBP]
          5       ST       ST Datagram Mode                     [<a href="#ref-34" title="&quot;ST - A Proposed Internet Stream Protocol&quot;">34</a>,JWF]
       6-14                Unassigned                              [JBP]
         15                Reserved                                [JBP]


































<span class="grey">Reynolds &amp; Postel                                              [Page 10]</span></pre>
<hr class='noprint'/><!--NewPage--><pre class='newpage'><span id="page-11" ></span>
<span class="grey">Assigned Numbers                                                 <a href="./rfc900">RFC 900</a></span>
Protocol Numbers


                       ASSIGNED PROTOCOL NUMBERS

   In the Internet Protocol (IP) [<a href="#ref-31" title="&quot;Internet Protocol Transition Workbook&quot;">31</a>,<a href="#ref-71" title="&quot;Internet Protocol - DARPA Internet Program Protocol Specification&quot;">71</a>] there is a field, called
   Protocol, to identify the the next level protocol.  This is an 8 bit
   field.

   Assigned Internet Protocol Numbers

      Decimal    Keyword     Protocol                         References
      -------    -------     --------                         ----------
           0                 Reserved                              [JBP]
           1      ICMP       Internet Control Message           [<a href="#ref-63" title="&quot;Internet Control Message Protocol - DARPA Internet Program Protocol Specification&quot;">63</a>,JBP]
           2                 Unassigned                            [JBP]
           3      GGP        Gateway-to-Gateway                  [<a href="#ref-42" title="&quot;The DARPA Internet Gateway&quot;">42</a>,MB]
           4                 Unassigned                            [JBP]
           5      ST         Stream                             [<a href="#ref-34" title="&quot;ST - A Proposed Internet Stream Protocol&quot;">34</a>,JWF]
           6      TCP        Transmission Control            [<a href="#ref-31" title="&quot;Internet Protocol Transition Workbook&quot;">31</a>,<a href="#ref-72" title="&quot;Transmission Control Protocol - DARPA Internet Program Protocol Specification&quot;">72</a>,JBP]
           7                 UCL                                    [PK]
           8      EGP        Exterior Gateway Protocol         [<a href="#ref-85" title="&quot;STUB&quot;">85</a>,DLM1]
           9      IGP        any private interior gateway          [JBP]
          10                 BBN RCC Monitoring                    [SGC]
          11      NVP-II     Network Voice Protocol             [<a href="#ref-16" title="&quot;Specifications for the Network Voice Protocol&quot;">16</a>,SC3]
          12                 PUP                                [<a href="#ref-11" title="&quot;PUP: An Internetwork Architecture&quot;">11</a>,<a href="#ref-HGM">HGM</a>]
          13                 ARGUS                                [RWS4]
          14                 Unassigned                            [JBP]
          15      XNET       Cross Net Debugger                [<a href="#ref-40" title="&quot;XNET Formats for Internet Protocol Version 4&quot;">40</a>,JFH2]
          16                 Chaos Stream                          [NC3]
          17      UDP        User Datagram                   [<a href="#ref-31" title="&quot;Internet Protocol Transition Workbook&quot;">31</a>,<a href="#ref-70" title="&quot;User Datagram Protocol&quot;">70</a>,JBP]
          18      MUX        Multiplexing                       [<a href="#ref-17" title="&quot;Multiplexing Protocol&quot;">17</a>,JBP]
          19                 DCN Measurement Subsystems           [DLM1]
          20      HMP        Host Monitoring                    [<a href="#ref-41" title="&quot;A Host Monitoring Protocol&quot;">41</a>,RH6]
          21                 Packet Radio Measurement              [ZSU]
          22                 XEROX NS IDP                       [<a href="#ref-97" title="&quot;Internet Transport Protocols&quot;">97</a>,LLG]
          23                 Trunk-1                               [BML]
          24                 Trunk-2                               [BML]
          25                 Leaf-1                                [BML]
          26                 Leaf-2                                [BML]
       27-60                 Unassigned                            [JBP]
          61                 any host internal protocol            [JBP]
          62                 CFTP                              [<a href="#ref-35" title="&quot;CFTP&quot;">35</a>,HCF2]
          63                 any local network                     [JBP]
          64                 SATNET and Backroom EXPAK            [DM11]
          65                 MIT Subnet Support                    [NC3]
          66     RVD         MIT Remote Virtual Disk Protocol      [MBG]
          67                 Internet Pluribus Packet Core        [DM11]
          68                 Unassigned                            [JBP]
          69                 SATNET Monitoring                    [DM11]
          70                 Unassigned                            [JBP]


<span class="grey">Reynolds &amp; Postel                                              [Page 11]</span></pre>
<hr class='noprint'/><!--NewPage--><pre class='newpage'><span id="page-12" ></span>
<span class="grey">Assigned Numbers                                                 <a href="./rfc900">RFC 900</a></span>
Protocol Numbers


          71                 Internet Packet Core Utility         [DM11]
       72-75                 Unassigned                            [JBP]
          76                 Backroom SATNET Monitoring           [DM11]
          77                 Unassigned                            [JBP]
          78                 WIDEBAND Monitoring                  [DM11]
          79                 WIDEBAND EXPAK                       [DM11]
      80-254                 Unassigned                            [JBP]
         255                 Reserved                              [JBP]










































<span class="grey">Reynolds &amp; Postel                                              [Page 12]</span></pre>
<hr class='noprint'/><!--NewPage--><pre class='newpage'><span id="page-13" ></span>
<span class="grey">Assigned Numbers                                                 <a href="./rfc900">RFC 900</a></span>
Port Numbers


                         ASSIGNED PORT NUMBERS

   Ports are used in the TCP [<a href="#ref-31" title="&quot;Internet Protocol Transition Workbook&quot;">31</a>,<a href="#ref-72" title="&quot;Transmission Control Protocol - DARPA Internet Program Protocol Specification&quot;">72</a>] to name the ends of logical
   connections which carry long term conversations.  For the purpose of
   providing services to unknown callers, a service contact port is
   defined.  This list specifies the port used by the server process as
   its contact port.  The contact port is sometimes called the
   "well-known port".

   To the extent possible, these same port assignments are used with the
   UDP [<a href="#ref-31" title="&quot;Internet Protocol Transition Workbook&quot;">31</a>,<a href="#ref-70" title="&quot;User Datagram Protocol&quot;">70</a>].

   The assigned ports use a small portion of the possible port numbers.
   The assigned ports have all except the low order eight bits cleared
   to zero.  The low order eight bits are specified here.

   Port Assignments:

      Decimal   Keyword   Description                         References
      -------   -------   -----------                         ----------
      0                   Reserved                                 [JBP]
      1-4                 Unassigned                               [JBP]
      5          RJE      Remote Job Entry                   [<a href="#ref-13" title="&quot;Remote Job Entry Protocol&quot;">13</a>,<a href="#ref-32" title="&quot;ARPANET Protocol Handbook&quot;">32</a>,JBP]
      7          ECHO     Echo                                  [<a href="#ref-61" title="&quot;Echo Protocol&quot;">61</a>,JBP]
      9          DISCARD  Discard                               [<a href="#ref-60" title="&quot;Discard Protocol&quot;">60</a>,JBP]
      11         USERS    Active Users                          [<a href="#ref-56" title="&quot;Active Users&quot;">56</a>,JBP]
      13         DAYTIME  Daytime                               [<a href="#ref-59" title="&quot;Daytime Protocol&quot;">59</a>,JBP]
      15         NETSTAT  Who is up or NETSTAT                     [JBP]
      17         QUOTE    Quote of the Day                      [<a href="#ref-66" title="&quot;Quote of the Day Protocol&quot;">66</a>,JBP]
      19         CHARGEN  Character Generator                   [<a href="#ref-58" title="&quot;Character Generator Protocol&quot;">58</a>,JBP]
      20         FTP      File Transfer [Default Data]       [<a href="#ref-31" title="&quot;Internet Protocol Transition Workbook&quot;">31</a>,<a href="#ref-62" title="&quot;File Transfer Protocol&quot;">62</a>,JBP]
      21         FTP      File Transfer [Control]            [<a href="#ref-31" title="&quot;Internet Protocol Transition Workbook&quot;">31</a>,<a href="#ref-62" title="&quot;File Transfer Protocol&quot;">62</a>,JBP]
      23         TELNET   Telnet                                [<a href="#ref-78" title="&quot;Telnet Protocol Specification&quot;">78</a>,JBP]
      25         SMTP     Simple Mail Transfer               [<a href="#ref-31" title="&quot;Internet Protocol Transition Workbook&quot;">31</a>,<a href="#ref-68" title="&quot;Simple Mail Transfer Protocol&quot;">68</a>,JBP]
      27                  NSW User System FE                    [<a href="#ref-18" title="&quot;Semi-Annual Technical Report&quot;">18</a>,RHT]
      29                  MSG ICP                               [<a href="#ref-54" title="&quot;MSG: The Interprocess Communication Facility for the National Software Works&quot;">54</a>,RHT]
      31                  MSG Authentication                    [<a href="#ref-54" title="&quot;MSG: The Interprocess Communication Facility for the National Software Works&quot;">54</a>,RHT]
      33                  Unassigned                               [JBP]
      35                  Any Printer Server                       [JBP]
      37         TIME     Time                                  [<a href="#ref-74" title="&quot;Time Protocol&quot;">74</a>,JBP]
      39         RLP      Resource Location Protocol              [<a href="#ref-1" title="&quot;Resource Location Protocol&quot;">1</a>,MA]
      41         GRAPHICS Graphics                           [<a href="#ref-32" title="&quot;ARPANET Protocol Handbook&quot;">32</a>,<a href="#ref-90" title="&quot;A Networks Graphics Protocol&quot;">90</a>,JBP]
      42       NAMESERVER Host Name Server                   [<a href="#ref-31" title="&quot;Internet Protocol Transition Workbook&quot;">31</a>,<a href="#ref-65" title="&quot;Name Server&quot;">65</a>,JBP]
      43         NICNAME  Who Is                            [<a href="#ref-31" title="&quot;Internet Protocol Transition Workbook&quot;">31</a>,<a href="#ref-39" title="&quot;Nicname/Whois&quot;">39</a>,JAKE]
      44                  MPM FLAGS Protocol                       [JBP]
      45         MPM      Message Processing Module [recv]      [<a href="#ref-64" title="&quot;Internet Message Protocol&quot;">64</a>,JBP]
      46         MPM      MPM [default send]                    [<a href="#ref-64" title="&quot;Internet Message Protocol&quot;">64</a>,JBP]
      47                  NI FTP                                 [<a href="#ref-94" title="&quot;A Network Independent File Transfer Protocol&quot;">94</a>,SK]


<span class="grey">Reynolds &amp; Postel                                              [Page 13]</span></pre>
<hr class='noprint'/><!--NewPage--><pre class='newpage'><span id="page-14" ></span>
<span class="grey">Assigned Numbers                                                 <a href="./rfc900">RFC 900</a></span>
Port Numbers


      49                  Login Host Protocol                      [PXD]
      51                  IMP Logical Address Maintenance       [<a href="#ref-50" title="&quot;Logical Addressing Implementation Specification&quot;">50</a>,AGM]
      53         DOMAIN   Domain Name Server                       [PM1]
      55                  ISI Graphics Language                 [<a href="#ref-10" title="&quot;Graphics Language (version 2.1)&quot;">10</a>,RB6]
      57                  Any Private Terminal Access              [JBP]
      59                  Any Private File Service                 [JBP]
      61                  NI MAIL                                 [<a href="#ref-8" title="&quot;A Simple NIFTP-Based Mail System&quot;">8</a>,SK]
      63                  VIA Systems - FTP                        [DXD]
      65                  Unassigned                               [JBP]
      67                  Unassigned                               [JBP]
      69         TFTP     Trivial File Transfer              [<a href="#ref-31" title="&quot;Internet Protocol Transition Workbook&quot;">31</a>,<a href="#ref-87" title="&quot;The TFTP Protocol (Revision 2)&quot;">87</a>,KRS]
      71         NETRJS   Remote Job Service                 [<a href="#ref-12" title="&quot;NETRJS Protocol&quot;">12</a>,<a href="#ref-32" title="&quot;ARPANET Protocol Handbook&quot;">32</a>,RTB]
      72         NETRJS   Remote Job Service                 [<a href="#ref-12" title="&quot;NETRJS Protocol&quot;">12</a>,<a href="#ref-32" title="&quot;ARPANET Protocol Handbook&quot;">32</a>,RTB]
      73         NETRJS   Remote Job Service                 [<a href="#ref-12" title="&quot;NETRJS Protocol&quot;">12</a>,<a href="#ref-32" title="&quot;ARPANET Protocol Handbook&quot;">32</a>,RTB]
      74         NETRJS   Remote Job Service                 [<a href="#ref-12" title="&quot;NETRJS Protocol&quot;">12</a>,<a href="#ref-32" title="&quot;ARPANET Protocol Handbook&quot;">32</a>,RTB]
      75                  Any Private Dial Out Service             [JBP]
      77                  Any Private RJE Service                  [JBP]
      79         FINGER   Finger                             [<a href="#ref-32" title="&quot;ARPANET Protocol Handbook&quot;">32</a>,<a href="#ref-37" title="&quot;Name/Finger&quot;">37</a>,KLH]
      81                  HOSTS2 Name Server                      [EAK1]
      83                  MIT ML Device                            [DPR]
      85                  MIT ML Device                            [DPR]
      87                  Any Private Terminal Link                [JBP]
      89                  SU/MIT Telnet Gateway                    [MRC]
      91                  MIT Dover Spooler                        [EBM]
      93                  Device Control Protocol                  [DCT]
      95         SUPDUP   SUPDUP                                [<a href="#ref-21" title="&quot;SUPDUP Protocol&quot;">21</a>,MRC]
      97                  Unassigned                               [JBP]
      99                  Metagram Relay                          [GEOF]
      101        HOSTNAME NIC Host Name Server              [<a href="#ref-31" title="&quot;Internet Protocol Transition Workbook&quot;">31</a>,<a href="#ref-38" title="&quot;Hostnames Server&quot;">38</a>,JAKE]
      103                 Unassigned                               [JBP]
      105        CSNET-NS Mailbox Name Nameserver              [<a href="#ref-88" title="&quot;The CSNET Name Server&quot;">88</a>,MHS1]
      107        RTELNET  Remote Telnet Service                 [<a href="#ref-67" title="&quot;Remote Telnet Service&quot;">67</a>,JBP]
      109        POP      Post Office Protocol                     [JBP]
      110-129             Unassigned                               [JBP]
      131                 Unassigned                               [JBP]
      132-223             Reserved                                 [JBP]
      224-241             Unassigned                               [JBP]
      243                 Survey Measurement                      [<a href="#ref-9" title="&quot;A Report on the Survey Project&quot;">9</a>,AV]
      245                 LINK                                 [<a href="#ref-14" title="&quot;Inter-Entity Communication -- An Experiment&quot;">14</a>,RDB2]
      247-255             Unassigned                               [JBP]










<span class="grey">Reynolds &amp; Postel                                              [Page 14]</span></pre>
<hr class='noprint'/><!--NewPage--><pre class='newpage'><span id="page-15" ></span>
<span class="grey">Assigned Numbers                                                 <a href="./rfc900">RFC 900</a></span>
Autonomous System Numbers


                   ASSIGNED AUTONOMOUS SYSTEM NUMBERS

   The Exterior Gateway Protocol (EGP) [<a href="#ref-85" title="&quot;STUB&quot;">85</a>,<a href="#ref-84" title="&quot;Exterior Gateway Protocol&quot;">84</a>] specifies that groups of
   gateways may form autonomous systems.  The EGP provides a 16-bit
   field for identifying such systems.  The values of this field are
   registered here.

   Autonomous System Numbers:

      Decimal   Name                                          References
      -------   ----                                          ----------
            0   Reserved                                           [JBP]
            1   The BBN Gateways                                    [MB]
            2   DCN-AS                                            [DLM1]
            3   The MIT Gateways                                   [LM8]
            4   ISI-AS                                             [PXK]
            5   Symbolics                                          [CH2]
            6   HIS-Multics                                    [BIM,RK1]
            7   UK-MOD                                            [RNM1]
            8   RICE-AS                                            [PGM]
            9   CMU-ROUTER                                          [MA]
      10-65534  Unassigned                                         [JBP]
        65535   Reserved                                           [JBP]



























<span class="grey">Reynolds &amp; Postel                                              [Page 15]</span></pre>
<hr class='noprint'/><!--NewPage--><pre class='newpage'><span id="page-16" ></span>
<span class="grey">Assigned Numbers                                                 <a href="./rfc900">RFC 900</a></span>
ARPANET Logical Addresses


                   ASSIGNED ARPANET LOGICAL ADDRESSES

   The ARPANET facility for "logical addressing" is described in <a href="./rfc878">RFC 878</a>
   [<a href="#ref-49" title="&quot;The ARPANET 1822L Host Access Protocol&quot;">49</a>].  A portion of the possible logical addresses are reseved for
   standard uses.

   There are 49,152 possible logical host addresses.  Of these, 256 are
   reserved for assignment to well-known functions.  Assignments for
   well-known functions are made by Joyce Reynolds.  Assignments for
   other logical host addresses are made by the NIC.

   Logical Address Assignments:

      Decimal    Description                                  References
      -------    -----------                                  ----------
      0          Reserved                                          [JBP]
      1          The BBN Gateways                                   [MB]
      2-255      Unassigned                                        [JBP]
      256        Reserved                                          [JBP]































<span class="grey">Reynolds &amp; Postel                                              [Page 16]</span></pre>
<hr class='noprint'/><!--NewPage--><pre class='newpage'><span id="page-17" ></span>
<span class="grey">Assigned Numbers                                                 <a href="./rfc900">RFC 900</a></span>
ARPANET Link Numbers


                     ASSIGNED ARPANET LINK NUMBERS

   The word "link" here refers to a field in the original ARPANET
   Host/IMP interface leader.  The link was originally defined as an
   8-bit field.  Later specifications defined this field as the
   "message-id" with a length of 12 bits.  The name link now refers to
   the high order 8 bits of this 12-bit message-id field.  The Host/IMP
   interface is defined in BBN Report 1822 [<a href="#ref-7" title="&quot;Specifications for the Interconnection of a Host and an IMP&quot;">7</a>].

   The low-order 4 bits of the message-id field are called the sub-link.
   Unless explicitly specified otherwise for a particular protocol,
   there is no sender to receiver significance to the sub-link.  The
   sender may use the sub-link in any way he chooses (it is returned in
   the RFNM by the destination IMP), the receiver should ignore the
   sub-link.

   Link Assignments:

      Decimal   Description                                   References
      -------   -----------                                   ----------
      0         Reserved                                           [JBP]
      1-149     Unassigned                                         [JBP]
      150       Xerox NS IDP                                    [<a href="#ref-97" title="&quot;Internet Transport Protocols&quot;">97</a>,LLG]
      151       Unassigned                                         [JBP]
      152       PARC Universal Protocol                         [<a href="#ref-11" title="&quot;PUP: An Internetwork Architecture&quot;">11</a>,<a href="#ref-HGM">HGM</a>]
      153       TIP Status Reporting                               [JGH]
      154       TIP Accounting                                     [JGH]
      155       Internet Protocol [regular]                  [<a href="#ref-31" title="&quot;Internet Protocol Transition Workbook&quot;">31</a>,<a href="#ref-71" title="&quot;Internet Protocol - DARPA Internet Program Protocol Specification&quot;">71</a>,JBP]
      156-158   Internet Protocol [experimental]             [<a href="#ref-31" title="&quot;Internet Protocol Transition Workbook&quot;">31</a>,<a href="#ref-71" title="&quot;Internet Protocol - DARPA Internet Program Protocol Specification&quot;">71</a>,JBP]
      159       Figleaf Link                                      [JBW1]
      160-195   Unassigned                                         [JBP]
      196-247   Experimental Protocols                             [JBP]
      248-255   Network Maintenance                                [JGH]

















<span class="grey">Reynolds &amp; Postel                                              [Page 17]</span></pre>
<hr class='noprint'/><!--NewPage--><pre class='newpage'><span id="page-18" ></span>
<span class="grey">Assigned Numbers                                                 <a href="./rfc900">RFC 900</a></span>
IEEE 802 SAP Numbers


                    IEEE 802 SAP NUMBERS OF INTEREST

   Many of the networks of all classes are IEEE 802 Networks.  These
   systems use a Service Access Point field in much the same way the
   ARPANET uses the "link" field.

   Assignments:

      Service Access Point               Description          References
      --------------------               -----------          ----------
      decimal  binary
         96   01100000                   DOD IP              [<a href="#ref-31" title="&quot;Internet Protocol Transition Workbook&quot;">31</a>,<a href="#ref-70" title="&quot;User Datagram Protocol&quot;">70</a>,JBP]






































<span class="grey">Reynolds &amp; Postel                                              [Page 18]</span></pre>
<hr class='noprint'/><!--NewPage--><pre class='newpage'><span id="page-19" ></span>
<span class="grey">Assigned Numbers                                                 <a href="./rfc900">RFC 900</a></span>
Ethernet Numbers


                      ETHERNET NUMBERS OF INTEREST

   Many of the networks of all classes are Ethernets (10Mb) or
   Experimental Ethernets (3Mb).  These systems use a message "type"
   field in much the same way the ARPANET uses the "link" field.

   Assignments:

      Ethernet          Exp. Ethernet    Description          References
      -------------     -------------   -----------           ----------
      decimal  Hex      decimal  octal
         512   0200        512   1000   XEROX PUP                [<a href="#ref-1" title="&quot;Resource Location Protocol&quot;">1</a>,<a href="#ref-HGM">HGM</a>]
        1536   0600       1536   3000   XEROX NS IDP            [<a href="#ref-97" title="&quot;Internet Transport Protocols&quot;">97</a>,LLG]
        2048   0800        513   1001   DOD IP              [131,71,JBP]
        2049   0801        -      -     X.75 Internet              [LLG]
        2050   0802        -      -     NBS Internet               [LLG]
        2051   0803        -      -     ECMA Internet              [LLG]
        2052   0804        -      -     Chaosnet                   [LLG]
        2053   0805        -      -     X.25 Level 3               [LLG]
        2054   0806        -      -     Address Res            [<a href="#ref-55" title="&quot;An Ethernet Address Resolution Protocol or Converting Network Protocol Addresses to 48-bit Ethernet Addresses for Transmission on Ethernet Hardware&quot;">55</a>,DCP1]
        2076   081C        -      -     Symbolics Private         [DCP1]
       32771   8003        -      -     Cronus VLN              [<a href="#ref-91" title="&quot;The CRONUS Virtual Local Network&quot;">91</a>,DCT]
       32772   8004        -      -     Cronus Direct           [<a href="#ref-91" title="&quot;The CRONUS Virtual Local Network&quot;">91</a>,DCT]
       32774   8006        -      -     Nestar                     [LLG]
       36864   9000        -      -     Loopback                   [LLG]

   The standard for transmission of IP datagrams over Ethernets and
   Experimental Ethernets is specified in <a href="./rfc894">RFC 894</a> [<a href="#ref-41" title="&quot;A Host Monitoring Protocol&quot;">41</a>] and <a href="./rfc895">RFC 895</a> [<a href="#ref-57" title="J.">57</a>]
   respectively.





















<span class="grey">Reynolds &amp; Postel                                              [Page 19]</span></pre>
<hr class='noprint'/><!--NewPage--><pre class='newpage'><span id="page-20" ></span>
<span class="grey">Assigned Numbers                                                 <a href="./rfc900">RFC 900</a></span>
Address Resolution Protocol


            ASSIGNED ADDRESS RESOLUTION PROTOCOL PARAMETERS

   The Address Resolution Protocol (ARP) specified in <a href="./rfc826">RFC 826</a> [<a href="#ref-55" title="&quot;An Ethernet Address Resolution Protocol or Converting Network Protocol Addresses to 48-bit Ethernet Addresses for Transmission on Ethernet Hardware&quot;">55</a>] has
   several parameters.  The assigned values for these parameters are
   listed here.

   Assignments:

      Operation Code (op)

         1   REQUEST
         2   REPLY

      Hardware Type (hrd)

         1   ETHERNET (10Mb)
         2   EXPERIMENTAL ETHERNET (3Mb)

      Protocol Type (pro)

         Use the same codes as listed in the section called "Ethernet
         Numbers of Interest".




























<span class="grey">Reynolds &amp; Postel                                              [Page 20]</span></pre>
<hr class='noprint'/><!--NewPage--><pre class='newpage'><span id="page-21" ></span>
<span class="grey">Assigned Numbers                                                 <a href="./rfc900">RFC 900</a></span>
Public Data Network Numbers


                  ASSIGNED PUBLIC DATA NETWORK NUMBERS

   One of the Internet Class A Networks is the international system of
   Public Data Networks.  This section lists the mapping between the
   Internet Addresses and the Public Data Network Addresses (X.121).

   Assignments:

      Internet           Public Data Net    Description       References
      ---------------   -----------------   -----------       ----------
      014.000.000.000                       Reserved               [JBP]
      014.000.000.001   3110-317-00035 00   PURDUE-TN              [CAK]
      014.000.000.002   3110-608-00027 00   UWISC-TN               [CAK]
      014.000.000.003   3110-302-00024 00   UDEL-TN                [CAK]
      014.000.000.004   2342-192-00149 23   UCL-VTEST               [PK]
      014.000.000.005   2342-192-00300 23   UCL-TG                  [PK]
      014.000.000.006   2342-192-00300 25   UK-SATNET               [PK]
      014.000.000.007   3110-608-00024 00   UWISC-IBM             [MHS1]
      014.000.000.008   3110-213-00045 00   RAND-TN                [MO2]
      014.000.000.009   2342-192-00300 23   UCL-CS                  [PK]
      014.000.000.010   3110-617-00025 00   BBN-VAN-GW            [JD21]
      014.000.000.011   2405-015-50300 00   CHALMERS               [<a href="#ref-UXB">UXB</a>]
      014.000.000.012   3110-713-00165 00   RICE                  [PAM6]
      014.000.000.013   3110-415-00261 00   DECWRL                [PAM6]
      014.000.000.014   3110-408-00051 00   IBM-SJ                 [SA1]
      014.000.000.015   2041-117-01000 00   SHAPE                  [PG3]
      014.000.000.016   2628-153-90075 00   DFVLR                 [HDC1]
      014.000.000.017-014.255.255.254       Unassigned             [JBP]
      014.255.255.255                       Reserved               [JBP]

   The standard for transmission of IP datagrams over the Public Data
   Network is specified in <a href="./rfc877">RFC 877</a> [<a href="#ref-47" title="&quot;A Standard for the Transmission of IP Datagrams Over Public Data Networks&quot;">47</a>].


















<span class="grey">Reynolds &amp; Postel                                              [Page 21]</span></pre>
<hr class='noprint'/><!--NewPage--><pre class='newpage'><span id="page-22" ></span>
<span class="grey">Assigned Numbers                                                 <a href="./rfc900">RFC 900</a></span>
Telnet Options


                        ASSIGNED TELNET OPTIONS

   The Telnet Protocol has a number of options that may be negotiated.
   These options are listed here.  The "Official Protocols" document
   [<a href="#ref-83" title="&quot;Official Protocols&quot;">83</a>] provides more detailed information.

   Options  Name                                              References
   -------  -----------------------                           ----------
      0     Binary Transmission                                 [<a href="#ref-76" title="&quot;Telnet Binary Transmission&quot;">76</a>,JBP]
      1     Echo                                                [<a href="#ref-77" title="&quot;Telnet Echo Option&quot;">77</a>,JBP]
      2     Reconnection                                         [<a href="#ref-5" title="&quot;Telnet Reconnection Option&quot;">5</a>,JBP]
      3     Suppress Go Ahead                                   [<a href="#ref-80" title="&quot;Telnet Suppress Go Ahead Option&quot;">80</a>,JBP]
      4     Approx Message Size Negotiation                     [<a href="#ref-32" title="&quot;ARPANET Protocol Handbook&quot;">32</a>,JBP]
      5     Status                                              [<a href="#ref-79" title="&quot;Telnet Status Option&quot;">79</a>,JBP]
      6     Timing Mark                                         [<a href="#ref-81" title="&quot;Telnet Timing Mark Option&quot;">81</a>,JBP]
      7     Remote Controlled Trans and Echo                    [<a href="#ref-73" title="&quot;Remote Controlled Transmission and Echoing Telnet Option&quot;">73</a>,JBP]
      8     Output Line Width                                    [<a href="#ref-3" title="&quot;Telnet Output Line Width Option&quot;">3</a>,JBP]
      9     Output Page Size                                     [<a href="#ref-4" title="">4</a>,JBP]
     10     Output Carriage-Return Disposition                  [<a href="#ref-22" title="&quot;Telnet Output Carriage-Return Disposition Option&quot;">22</a>,JBP]
     11     Output Horizontal Tab Stops                         [<a href="#ref-26" title="&quot;Telnet Output Horizontal Tabstops Option&quot;">26</a>,JBP]
     12     Output Horizontal Tab Disposition                   [<a href="#ref-25" title="&quot;Telnet Output Horizontal Tab Disposition Option&quot;">25</a>,JBP]
     13     Output Formfeed Disposition                         [<a href="#ref-23" title="&quot;Telnet Output Formfeed Disposition Option&quot;">23</a>,JBP]
     14     Output Vertical Tabstops                            [<a href="#ref-28" title="&quot;Telnet Output Vertical Tabstops Option&quot;">28</a>,JBP]
     15     Output Vertical Tab Disposition                     [<a href="#ref-27" title="&quot;Telnet Output Vertical Tab Disposition Option&quot;">27</a>,JBP]
     16     Output Linefeed Disposition                         [<a href="#ref-24" title="&quot;Telnet Output Linefeed Disposition&quot;">24</a>,JBP]
     17     Extended ASCII                                      [<a href="#ref-53" title="&quot;Telnet Extended ASCII Option&quot;">53</a>,JBP]
     18     Logout                                              [<a href="#ref-19" title="&quot;Telnet Logout Option&quot;">19</a>,MRC]
     19     Byte Macro                                          [<a href="#ref-29" title="&quot;Revised Telnet Byte Marco Option&quot;">29</a>,JBP]
     20     Data Entry Terminal                                 [<a href="#ref-30" title="&quot;Telnet Data Entry Terminal Option&quot;">30</a>,JBP]
     22     SUPDUP                                           [<a href="#ref-21" title="&quot;SUPDUP Protocol&quot;">21</a>,<a href="#ref-20" title="&quot;Telnet SUPDUP Option&quot;">20</a>,MRC]
     22     SUPDUP Output                                       [<a href="#ref-36" title="&quot;Telnet SUPDUP-OUTPUT Option&quot;">36</a>,MRC]
     23     Send Location                                      [<a href="#ref-46" title="&quot;Telnet Send-Location Option&quot;">46</a>,EAK1]
     24     Terminal Type                                      [<a href="#ref-89" title="&quot;Telnet Terminal Type Option&quot;">89</a>,MHS1]
     25     End of Record                                       [<a href="#ref-69" title="&quot;Telnet End of Record Option&quot;">69</a>,JBP]
    255     Extended-Options-List                               [<a href="#ref-75" title="&quot;Telnet Extended Options - List Option&quot;">75</a>,JBP]















<span class="grey">Reynolds &amp; Postel                                              [Page 22]</span></pre>
<hr class='noprint'/><!--NewPage--><pre class='newpage'><span id="page-23" ></span>
<span class="grey">Assigned Numbers                                                 <a href="./rfc900">RFC 900</a></span>
Machine Names


                         OFFICIAL MACHINE NAMES

   These are the Official Machine Names as they appear in the NIC Host
   Table.  Their use is described in <a href="./rfc810">RFC 810</a> [<a href="#ref-33" title="&quot;DoD Internet Host Table Specification&quot;">33</a>].

   ALTO
   AMDAHL-V7
   BURROUGHS-B/29
   C/30
   C/70
   CADLINC
   CADR
   CDC-173
   DEC-10
   DEC-1050
   DEC-1080
   DEC-1090
   DEC-1090B
   DEC-1090T
   DEC-2020T
   DEC-2040
   DEC-2040T
   DEC-2050T
   DEC-2060
   DEC-2060T
   DEC-FALCON
   DPS8/70M
   FOONLY-F2
   FOONLY-F3
   FOONLY-F4
   H-316
   H-60/68
   H-68
   H-68/80
   H-89
   HONEYWELL-DPS-8/70M
   IBM-158
   IBM-360/67
   IBM-370/3033
   IBM-4341
   IBM-PC
   IMSAI
   K102
   LSI-11
   LSI-11/23
   M6800
   MAXC
   MLC


<span class="grey">Reynolds &amp; Postel                                              [Page 23]</span></pre>
<hr class='noprint'/><!--NewPage--><pre class='newpage'><span id="page-24" ></span>
<span class="grey">Assigned Numbers                                                 <a href="./rfc900">RFC 900</a></span>
Machine Names


   NAS-AS/5
   ONYX-09001
   ONYX-28000
   PDP-11
   PDP-11/34
   PDP-11/40
   PDP-11/44
   PDP-11/45
   PDP-11/50
   PDP-11/70
   PERQ
   PLURIBUS
   ROLM-1666
   SMI
   SUN-150
   SYMBOLICS-3600
   UNIVAC-1100
   VAX-11/730
   VAX-11/750
   VAX-11/780
   XEROX-8010





























<span class="grey">Reynolds &amp; Postel                                              [Page 24]</span></pre>
<hr class='noprint'/><!--NewPage--><pre class='newpage'><span id="page-25" ></span>
<span class="grey">Assigned Numbers                                                 <a href="./rfc900">RFC 900</a></span>
System Names


                         OFFICIAL SYSTEM NAMES

   These are the Official System Names as they appear in the NIC Host
   Table.  Their use is described in <a href="./rfc810">RFC 810</a> [<a href="#ref-33" title="&quot;DoD Internet Host Table Specification&quot;">33</a>].

   ASP
   AUGUST
   BKY
   CCP
   DOS/360
   ELF
   EPOS
   EXEC-8
   GCOS
   GPOS
   ITS
   INTERCOM
   INTERLISP
   KRONOS
   MCP
   MOS
   MPX-RT
   MULTICS
   MVT
   NOS
   NOS/BE
   OS/MVS
   OS/MVT
   RIG
   RSX-11M
   RT11
   SCOPE
   SIGNAL
   SINTRAN
   TENEX
   TOPS-10
   TOPS-20
   TSS
   UNIX
   VM/370
   VM/CMS
   VMS
   WAITS
   XDE






<span class="grey">Reynolds &amp; Postel                                              [Page 25]</span></pre>
<hr class='noprint'/><!--NewPage--><pre class='newpage'><span id="page-26" ></span>
<span class="grey">Assigned Numbers                                                 <a href="./rfc900">RFC 900</a></span>
Protocol Names


                  OFFICIAL PROTOCOL AND SERVICE NAMES

   These are the Official Protocol Names.  Their use is described in
   greater detail in <a href="./rfc810">RFC 810</a> [<a href="#ref-33" title="&quot;DoD Internet Host Table Specification&quot;">33</a>].

   CHARGEN             - Character Generator Protocol
   CLOCK               - DCNET Time Server Protocol
   CSNET-NS            - CSNET Mailbox Nameserver Protocol
   DAYTIME             - Daytime Protocol
   DISCARD             - Discard Protocol
   DOMAIN              - Domain Name Server Protocol
   ECHO                - Echo Protocol
   EGP                 - Exterior Gateway Protocol
   FINGER              - Finger Protocol
   FTP                 - File Transfer Protocol
   GGP                 - Gateway Gateway Protocol
   GRAPHICS            - Graphics Protocol
   HMP                 - Host Monitoring Protocol
   HOSTNAME            - Hostname Protocol
   ICMP                - Internet Control Message Protocol
   IGP                 - Interior Gateway Protocol
   IP                  - Internet Protocol
   MPM                 - Internet Message Protocol
   MUX                 - Multiplexing Protocol
   NAMESERVER          - Host Name Server Protocol
   NETED               - Network Standard Text Editor
   NETRJS              - Remote Job Service
   NICNAME             - Who Is Protocol
   NVP-II              - Network Voice Protocol
   POP                 - Post Office Protocol
   QUOTE               - Quote of the Day Protocol
   RVD                 - Remote Virtual Disk Protocol
   RLP                 - Resource Location Protocol
   RJE                 - Remote Job Entry Protocol
   RTELNET             - Remote Telnet Service
   SMTP                - Simple Mail Transfer Protocol
   ST                  - Stream Protocol
   SUPDUP              - SUPDUP Protocol
   TELNET              - Telnet Protocol
   TCP                 - Transmission Control Protocol
   TFTP                - Trivial File Transfer Protocol
   TIME                - Time Server Protocol
   UDP                 - User Datagram Protocol
   USERS               - Active Users Protocol
   XNET                - Cross Net Debugger





<span class="grey">Reynolds &amp; Postel                                              [Page 26]</span></pre>
<hr class='noprint'/><!--NewPage--><pre class='newpage'><span id="page-27" ></span>
<span class="grey">Assigned Numbers                                                 <a href="./rfc900">RFC 900</a></span>
Terminal Type Names


                      OFFICIAL TERMINAL TYPE NAMES

   These are the Official Terminal Type Names.  Their use is described
   in <a href="./rfc884">RFC 884</a> [<a href="#ref-89" title="&quot;Telnet Terminal Type Option&quot;">89</a>].

   ADDS-CONSUL-980
   ADDS-REGENT-100
   ADDS-REGENT-20
   ADDS-REGENT-200
   ADDS-REGENT-25
   ADDS-REGENT-40
   ADDS-REGENT-60
   AMPEX-DIALOGUE-80
   ANDERSON-JACOBSON-630
   ANDERSON-JACOBSON-832
   ANDERSON-JACOBSON-841
   ANN-ARBOR-AMBASSADOR
   ARDS
   BITGRAPH
   BUSSIPLEXER
   CALCOMP-565
   CDC-456
   CDI-1030
   CDI-1203
   COMPUCOLOR-II
   CONCEPT-100
   DATA-100
   DATA-GENERAL-6053
   DATAGRAPHIX-132A
   DATAMEDIA-1520
   DATAMEDIA-1521
   DATAMEDIA-2500
   DATAMEDIA-3025
   DATAMEDIA-3025A
   DATAMEDIA-3045
   DATAMEDIA-3045A
   DATAMEDIA-DT80/1
   DATAPOINT-2200
   DATAPOINT-3000
   DATAPOINT-3300
   DATAPOINT-3360
   DEC-DECWRITER-I
   DEC-DECWRITER-II
   DEC-GT40
   DEC-GT40A
   DEC-GT42
   DEC-LA120
   DEC-LA30


<span class="grey">Reynolds &amp; Postel                                              [Page 27]</span></pre>
<hr class='noprint'/><!--NewPage--><pre class='newpage'><span id="page-28" ></span>
<span class="grey">Assigned Numbers                                                 <a href="./rfc900">RFC 900</a></span>
Terminal Type Names


   DEC-LA36
   DEC-LA38
   DEC-VT05
   DEC-VT100
   DEC-VT132
   DEC-VT50
   DEC-VT50H
   DEC-VT52
   DELTA-DATA-5000
   DELTA-TELTERM-2
   DIABLO-1620
   DIABLO-1640
   DIGILOG-333
   DTC-300S
   EDT-1200
   EXECUPORT-4000
   EXECUPORT-4080
   GENERAL-TERMINAL-100A
   GSI
   HAZELTINE-1500
   HAZELTINE-1510
   HAZELTINE-1520
   HAZELTINE-2000
   HP-2621
   HP-2621A
   HP-2621P
   HP-2626
   HP-2626A
   HP-2626P
   HP-2640
   HP-2640A
   HP-2640B
   HP-2645
   HP-2645A
   HP-2648
   HP-2648A
   HP-2649
   HP-2649A
   IBM-3101
   IBM-3101-10
   IBM-3275-2
   IBM-3276-2
   IBM-3276-3
   IBM-3276-4
   IBM-3277-2
   IBM-3278-2
   IBM-3278-3
   IBM-3278-4


<span class="grey">Reynolds &amp; Postel                                              [Page 28]</span></pre>
<hr class='noprint'/><!--NewPage--><pre class='newpage'><span id="page-29" ></span>
<span class="grey">Assigned Numbers                                                 <a href="./rfc900">RFC 900</a></span>
Terminal Type Names


   IBM-3278-5
   IBM-3279-2
   IBM-3279-3
   IMLAC
   INFOTON-100
   INFOTONKAS
   ISC-8001
   LSI-ADM-3
   LSI-ADM-31
   LSI-ADM-3A
   LSI-ADM-42
   MEMOREX-1240
   MICROBEE
   MICROTERM-ACT-IV
   MICROTERM-ACT-V
   MICROTERM-MIME-1
   MICROTERM-MIME-2
   NETRONICS
   NETWORK-VIRTUAL-TERMINAL
   OMRON-8025AG
   PERKIN-ELMER-1100
   PERKIN-ELMER-1200
   PLASMA-PANEL
   QUME-SPRINT-5
   SOROC
   SOROC-120
   SOUTHWEST-TECHNICAL-PRODUCTS-CT82
   SUPERBEE
   SUPERBEE-III-M
   TEC
   TEKTRONIX-4010
   TEKTRONIX-4012
   TEKTRONIX-4013
   TEKTRONIX-4014
   TEKTRONIX-4023
   TEKTRONIX-4024
   TEKTRONIX-4025
   TEKTRONIX-4027
   TELERAY-1061
   TELERAY-3700
   TELERAY-3800
   TELETEC-DATASCREEN
   TELETERM-1030
   TELETYPE-33
   TELETYPE-35
   TELETYPE-37
   TELETYPE-38
   TELETYPE-43


<span class="grey">Reynolds &amp; Postel                                              [Page 29]</span></pre>
<hr class='noprint'/><!--NewPage--><pre class='newpage'><span id="page-30" ></span>
<span class="grey">Assigned Numbers                                                 <a href="./rfc900">RFC 900</a></span>
Terminal Type Names


   TELEVIDEO-912
   TELEVIDEO-920
   TELEVIDEO-920B
   TELEVIDEO-920C
   TELEVIDEO-950
   TERMINET-1200
   TERMINET-300
   TI-700
   TI-733
   TI-735
   TI-743
   TI-745
   TYCOM
   UNIVAC-DCT-500
   VIDEO-SYSTEMS-1200
   VIDEO-SYSTEMS-5000
   VISUAL-200
   XEROX-1720
   ZENITH-H19
   ZENTEC-30






























<span class="grey">Reynolds &amp; Postel                                              [Page 30]</span></pre>
<hr class='noprint'/><!--NewPage--><pre class='newpage'><span id="page-31" ></span>
<span class="grey">Assigned Numbers                                                 <a href="./rfc900">RFC 900</a></span>
Documents


                               DOCUMENTS

   [<a id="ref-1">1</a>]    Accetta, Mike, "Resource Location Protocol", <a href="./rfc887">RFC 887</a>,
          Carnegie-Mellon University, December 1983.

   [<a id="ref-2">2</a>]    Aerospace, Internal Report, ATM-83(3920-01)-3, 1982.

   [<a id="ref-3">3</a>]    ARPANET Protocol Handbook, "Telnet Output Line Width Option",
          NIC 20196, 13-November-1973.

   [<a id="ref-4">4</a>]    ARPANET Protocol Handbook, "Telnet Output Page Size Option",
          NIC 20197, 13-November-1973.

   [<a id="ref-5">5</a>]    ARPANET Protocol Handbook, "Telnet Reconnection Option",
          NIC 15391, August 1973.

   [<a id="ref-6">6</a>]    BBN Proposal No. P83-COM-40, "Packet Switched Overlay to
          Tactical Multichannel/Satellite Systems".

   [<a id="ref-7">7</a>]    BBN, "Specifications for the Interconnection of a Host and an
          IMP", Report 1822, Bolt Beranek and Newman, Cambridge,
          Massachusetts, revised, December 1981.

   [<a id="ref-8">8</a>]    Bennett, C., "A Simple NIFTP-Based Mail System", IEN 169,
          University College, London, January 1981.

   [<a id="ref-9">9</a>]    Bhushan, A., "A Report on the Survey Project", <a href="./rfc530">RFC 530</a>,
          NIC 17375, 22 June 1973.

   [<a id="ref-10">10</a>]   Bisbey, R., D. Hollingworth, and B. Britt, "Graphics Language
          (version 2.1)", ISI/TM-80-18, USC/Information Sciences
          Institute, July 1980.

   [<a id="ref-11">11</a>]   Boggs, D., J. Shoch, E. Taft, and R. Metcalfe, "PUP: An
          Internetwork Architecture", XEROX Palo Alto Research Center,
          CSL-79-10, July 1979; also in IEEE Transactions on
          Communication, Volume COM-28, Number 4, April 1980.

   [<a id="ref-12">12</a>]   Braden, R., "NETRJS Protocol", <a href="./rfc740">RFC 740</a>, NIC 42423,
          22 November 1977.  Also in [<a href="#ref-32" title="&quot;ARPANET Protocol Handbook&quot;">32</a>].

   [<a id="ref-13">13</a>]   Bressler, B., "Remote Job Entry Protocol",  <a href="./rfc407">RFC 407</a>, NIC
          12112, 16 October 72.  Also in [<a href="#ref-32" title="&quot;ARPANET Protocol Handbook&quot;">32</a>].

   [<a id="ref-14">14</a>]   Bressler, R., "Inter-Entity Communication -- An Experiment",
          <a href="./rfc441">RFC 441</a>, NIC 13773, 19 January 1973.




<span class="grey">Reynolds &amp; Postel                                              [Page 31]</span></pre>
<hr class='noprint'/><!--NewPage--><pre class='newpage'><span id="page-32" ></span>
<span class="grey">Assigned Numbers                                                 <a href="./rfc900">RFC 900</a></span>
Documents


   [<a id="ref-15">15</a>]   Clark, D., "Revision of DSP Specification", Local Network
          Note 9, Laboratory for Computer Science, MIT, 17 June 1977.

   [<a id="ref-16">16</a>]   Cohen, D., "Specifications for the Network Voice Protocol",
          <a href="./rfc741">RFC 741</a>, ISI/RR 7539, USC/Information Sciences Institute,
          March 1976.

   [<a id="ref-17">17</a>]   Cohen, D. and J. Postel, "Multiplexing Protocol", IEN 90,
          USC/Information Sciences Institute, May 1979.

   [<a id="ref-18">18</a>]   COMPASS, "Semi-Annual Technical Report", CADD-7603-0411,
          Massachusetts Computer Associates, 4 March 1976. Also as,
          "National Software Works, Status Report No. 1,"
          RADC-TR-76-276, Volume 1, September 1976. And COMPASS. "Second
          Semi-Annual Report," CADD-7608-1611, Massachusetts Computer
          Associates, 16 August 1976.

   [<a id="ref-19">19</a>]   Crispin, Mark, "Telnet Logout Option", Stanford University-AI,
          <a href="./rfc727">RFC 727</a>, 27 April 1977.

   [<a id="ref-20">20</a>]   Crispin, Mark, "Telnet SUPDUP Option", Stanford University-AI,
          <a href="./rfc736">RFC 736</a>, 31-October-1977.

   [<a id="ref-21">21</a>]   Crispin, M., "SUPDUP Protocol", <a href="./rfc734">RFC 734</a>, NIC 41953,
          7 October 1977.  Also in [<a href="#ref-32" title="&quot;ARPANET Protocol Handbook&quot;">32</a>].

   [<a id="ref-22">22</a>]   Crocker, D., "Telnet Output Carriage-Return Disposition
          Option", <a href="./rfc652">RFC 652</a>, 25-October-1974.

   [<a id="ref-23">23</a>]   Crocker, D., "Telnet Output Formfeed Disposition Option",
          <a href="./rfc655">RFC 655</a>, 25-October-1974.

   [<a id="ref-24">24</a>]   Crocker, D., "Telnet Output Linefeed Disposition", <a href="./rfc658">RFC 658</a>,
          25-October-1974.

   [<a id="ref-25">25</a>]   Crocker, D., "Telnet Output Horizontal Tab Disposition
          Option", <a href="./rfc654">RFC 654</a>, 25-October-1974.

   [<a id="ref-26">26</a>]   Crocker, D., "Telnet Output Horizontal Tabstops Option",
          <a href="./rfc653">RFC 653</a>, 25-October-1974.

   [<a id="ref-27">27</a>]   Crocker, D., "Telnet Output Vertical Tab Disposition Option",
          <a href="./rfc657">RFC 657</a>, 25-October-1974.

   [<a id="ref-28">28</a>]   Crocker, D., "Telnet Output Vertical Tabstops Option",
          <a href="./rfc656">RFC 656</a>, 25-October-1974.




<span class="grey">Reynolds &amp; Postel                                              [Page 32]</span></pre>
<hr class='noprint'/><!--NewPage--><pre class='newpage'><span id="page-33" ></span>
<span class="grey">Assigned Numbers                                                 <a href="./rfc900">RFC 900</a></span>
Documents


   [<a id="ref-29">29</a>]   Crocker, D.H. and R.H. Gumpertz, "Revised Telnet Byte Marco
          Option", <a href="./rfc735">RFC 735</a>, 3-November-1977..

   [<a id="ref-30">30</a>]   Day, John, "Telnet Data Entry Terminal Option", <a href="./rfc732">RFC 732</a>,
          13-September-1977.

   [<a id="ref-31">31</a>]   Feinler, E., "Internet Protocol Transition Workbook", Network
          Information Center, SRI International, March 1982.

   [<a id="ref-32">32</a>]   Feinler, E. and J. Postel, eds., "ARPANET Protocol Handbook",
          NIC 7104, for the Defense Communications Agency by SRI
          International, Menlo Park, California, Revised January 1978.

   [<a id="ref-33">33</a>]   Feinler, E., K. Harrenstien, and Z. Su, "DoD Internet Host
          Table Specification", <a href="./rfc810">RFC 810</a>, SRI International, 1 March
          1982.

   [<a id="ref-34">34</a>]   Forgie, J., "ST - A Proposed Internet Stream Protocol",
          IEN 119, M.I.T. Lincoln Laboratory, September 1979.

   [<a id="ref-35">35</a>]   Forsdick, H., "CFTP", Network Message, Bolt Berenak and
          Newman, January 1982.

   [<a id="ref-36">36</a>]   Greenberg, B., "Telnet SUPDUP-OUTPUT Option", <a href="./rfc749">RFC 749</a>,
          MIT-Multics, 26-September-1978.

   [<a id="ref-37">37</a>]   Harrenstien, K., "Name/Finger", <a href="./rfc742">RFC 742</a>, NIC 42758,
          30 December 1977.  Also in [<a href="#ref-32" title="&quot;ARPANET Protocol Handbook&quot;">32</a>].

   [<a id="ref-38">38</a>]   Harrenstien, K., V. White, and E. Feinler, "Hostnames Server",
          <a href="./rfc811">RFC 811</a>, SRI International, March 1982.

   [<a id="ref-39">39</a>]   Harrenstien, K., and V. White, "Nicname/Whois", <a href="./rfc812">RFC 812</a>, SRI
          International, March 1982.

   [<a id="ref-40">40</a>]   Haverty, J., "XNET Formats for Internet Protocol Version 4",
          IEN 158, October 1980.

   [<a id="ref-41">41</a>]   Hinden, Robert M., "A Host Monitoring Protocol", <a href="./rfc869">RFC 869</a>, Bolt
          Berenak and Newman, December 1983.

   [<a id="ref-42">42</a>]   Hinden, R., A. Sheltzer, "The DARPA Internet Gateway",
          <a href="./rfc823">RFC 823</a>, September 1982.

   [<a id="ref-43">43</a>]   Honeywell CISL, Internal Document, "AFSDSC Hyperchannel RPQ
          Project Plan".

   [<a id="ref-44">44</a>]   Honeywell CISL, Internal Document, "Multics MR11 PFS".


<span class="grey">Reynolds &amp; Postel                                              [Page 33]</span></pre>
<hr class='noprint'/><!--NewPage--><pre class='newpage'><span id="page-34" ></span>
<span class="grey">Assigned Numbers                                                 <a href="./rfc900">RFC 900</a></span>
Documents


   [<a id="ref-45">45</a>]   Hornig, C., "A Standard for the Transmission of IP Datagrams
          over Ethernet Networks, <a href="./rfc894">RFC 894</a>, Symbolics, April 1984.

   [<a id="ref-46">46</a>]   Killian, E., "Telnet Send-Location Option", <a href="./rfc779">RFC 779</a>,
          April 1981.

   [<a id="ref-47">47</a>]   Korb, John T., "A Standard for the Transmission of IP
          Datagrams Over Public Data Networks", <a href="./rfc877">RFC 877</a>, Purdue
          University, September 1983.

   [<a id="ref-48">48</a>]   Macgregor, W., and D. Tappan, "The CRONUS Virtual Local
          Network", <a href="./rfc824">RFC 824</a>, Bolt Beranek and Newman, 22 August 1982.

   [<a id="ref-49">49</a>]   Malis, Andrew G.  "The ARPANET 1822L Host Access Protocol",
          <a href="./rfc878">RFC 878</a>, BBN Communications Corp., Cambridge, Mass,
          December 1983.

   [<a id="ref-50">50</a>]   Malis, A., "Logical Addressing Implementation Specification",
          BBN Report 5256, pp 31-36, May 1983.

   [<a id="ref-51">51</a>]   Metcalfe, R.M. and D.R. Boggs, "Ethernet: Distributed Packet
          Switching for Local Computer Networks", Communications of the
          ACM, 19 (7), pp 395-402, July 1976.

   [<a id="ref-52">52</a>]   Mills, D.L., "DCN Local-Network Protocols", <a href="./rfc891">RFC 891</a>, December
          1983.

   [<a id="ref-53">53</a>]   Tovar, "Telnet Extended ASCII Option", <a href="./rfc698">RFC 698</a>, Stanford
          University-AI, 23-July-1975.

   [<a id="ref-54">54</a>]   NSW Protocol Committee, "MSG: The Interprocess Communication
          Facility for the National Software Works", CADD-7612-2411,
          Massachusetts Computer Associates, BBN 3237, Bolt Beranek and
          Newman, Revised 24 December 1976.

   [<a id="ref-55">55</a>]   Plummer, D., "An Ethernet Address Resolution Protocol or
          Converting Network Protocol Addresses to 48-bit Ethernet
          Addresses for Transmission on Ethernet Hardware", <a href="./rfc826">RFC 826</a>, MIT
          LCS, November 1982.

   [<a id="ref-56">56</a>]   Postel, J., "Active Users", <a href="./rfc866">RFC 866</a>, USC/Information Sciences
          Institute, May 1983.

   [<a id="ref-57">57</a>]   Postel, J., "A Standard for the Transmission of IP Datagrams
          over Experimental Ethernet Networks, <a href="./rfc895">RFC 895</a>, USC/Information
          Sciences Institute, April 1984.




<span class="grey">Reynolds &amp; Postel                                              [Page 34]</span></pre>
<hr class='noprint'/><!--NewPage--><pre class='newpage'><span id="page-35" ></span>
<span class="grey">Assigned Numbers                                                 <a href="./rfc900">RFC 900</a></span>
Documents


   [<a id="ref-58">58</a>]   Postel, J., "Character Generator Protocol", <a href="./rfc864">RFC 864</a>,
          USC/Information Sciences Institute, May 1983.

   [<a id="ref-59">59</a>]   Postel, J., "Daytime Protocol", <a href="./rfc867">RFC 867</a>, USC/Information
          Sciences Institute, May 1983.

   [<a id="ref-60">60</a>]   Postel, J., "Discard Protocol", <a href="./rfc863">RFC 863</a>, USC/Information
          Sciences Institute, May 1983.

   [<a id="ref-61">61</a>]   Postel, J., "Echo Protocol", <a href="./rfc862">RFC 862</a>, USC/Information Sciences
          Institute, May 1983.

   [<a id="ref-62">62</a>]   Postel, J., "File Transfer Protocol", <a href="./rfc765">RFC 765</a>, IEN 149,
          USC/Information Sciences Institute, June 1980.

   [<a id="ref-63">63</a>]   Postel, J., "Internet Control Message Protocol - DARPA
          Internet Program Protocol Specification", <a href="./rfc792">RFC 792</a>,
          USC/Information Sciences Institute, September 1981.

   [<a id="ref-64">64</a>]   Postel, J., "Internet Message Protocol", <a href="./rfc759">RFC 759</a>, IEN 113,
          USC/Information Sciences Institute, August 1980.

   [<a id="ref-65">65</a>]   Postel, J., "Name Server", IEN 116, USC/Information Sciences
          Institute, August 1979.

   [<a id="ref-66">66</a>]   Postel, J., "Quote of the Day Protocol", <a href="./rfc865">RFC 865</a>,
          USC/Information Sciences Institute, May 1983.

   [<a id="ref-67">67</a>]   Postel, J., "Remote Telnet Service", <a href="./rfc818">RFC 818</a>, USC/Information
          Sciences Institute, November 1982.

   [<a id="ref-68">68</a>]   Postel, J., "Simple Mail Transfer Protocol", <a href="./rfc821">RFC 821</a>,
          USC/Information Sciences Institute, August 1982.

   [<a id="ref-69">69</a>]   Postel, J., "Telnet End of Record Option", <a href="./rfc885">RFC 885</a>,
          USC/Information Sciences Institute, December 1983.

   [<a id="ref-70">70</a>]   Postel, J., "User Datagram Protocol", <a href="./rfc768">RFC 768</a> USC/Information
          Sciences Institute, August 1980.

   [<a id="ref-71">71</a>]   Postel, J., ed., "Internet Protocol - DARPA Internet Program
          Protocol Specification", <a href="./rfc791">RFC 791</a>, USC/Information Sciences
          Institute, September 1981.

   [<a id="ref-72">72</a>]   Postel, J., ed., "Transmission Control Protocol - DARPA
          Internet Program Protocol Specification", <a href="./rfc793">RFC 793</a>,
          USC/Information Sciences Institute, September 1981.



<span class="grey">Reynolds &amp; Postel                                              [Page 35]</span></pre>
<hr class='noprint'/><!--NewPage--><pre class='newpage'><span id="page-36" ></span>
<span class="grey">Assigned Numbers                                                 <a href="./rfc900">RFC 900</a></span>
Documents


   [<a id="ref-73">73</a>]   Postel, J. and D. Crocker, "Remote Controlled Transmission and
          Echoing Telnet Option", <a href="./rfc726">RFC 726</a>, 8-March-1977.

   [<a id="ref-74">74</a>]   Postel, J., and K. Harrenstien, "Time Protocol", <a href="./rfc868">RFC 868</a>,
          USC/Information Sciences Institute, May 1983.

   [<a id="ref-75">75</a>]   Postel, J. and J. Reynolds, "Telnet Extended Options - List
          Option", <a href="./rfc861">RFC 861</a>, USC/Information Sciences Institute,
          May 1983.

   [<a id="ref-76">76</a>]   Postel, J. and J. Reynolds, "Telnet Binary Transmission",
          <a href="./rfc856">RFC 856</a>, USC/Information Sciences Institute, May 1983.

   [<a id="ref-77">77</a>]   Postel, J. and J. Reynolds, "Telnet Echo Option", <a href="./rfc857">RFC 857</a>,
          USC/Information Sciences Institute, May 1983.

   [<a id="ref-78">78</a>]   Postel, J., and J. Reynolds, "Telnet Protocol Specification",
          <a href="./rfc854">RFC 854</a>, USC/Information Sciences Institute, May 1983.

   [<a id="ref-79">79</a>]   Postel, J. and J. Reynolds, "Telnet Status Option", <a href="./rfc859">RFC 859</a>,
          USC/Information Sciences Institute, May 1983.

   [<a id="ref-80">80</a>]   Postel, J. and J. Reynolds, "Telnet Suppress Go Ahead Option",
          <a href="./rfc858">RFC 858</a>, USC/Information Sciences Institute, May 1983.

   [<a id="ref-81">81</a>]   Postel, J. and J. Reynolds, "Telnet Timing Mark Option",
          <a href="./rfc860">RFC 860</a>, USC/Information Sciences Institute, May 1983.

   [<a id="ref-82">82</a>]   Reed, D., "Protocols for the LCS Network", Local Network Note
          3, Laboratory for Computer Science, MIT, 29 November 1976.

   [<a id="ref-83">83</a>]   Reynolds, J. and J. Postel, "Official Protocols", <a href="./rfc901">RFC 901</a>,
          USC/Information Sciences Institute, June 1984.

   [<a id="ref-84">84</a>]   Rosen, E., "Exterior Gateway Protocol" <a href="./rfc827">RFC 827</a>, Bolt Berenak
          and Newman, October 1982.

   [<a id="ref-85">85</a>]   Seamonson, L.J., and E.C. Rosen, "STUB" Exterior Gateway
          Protocol", <a href="./rfc888">RFC 888</a>, BBN Communications Corporation,
          January 1984.

   [<a id="ref-86">86</a>]   Skelton, A., S. Holmgren, and D. Wood, "The MITRE Cablenet
          Project", IEN 96, April 1979.

   [<a id="ref-87">87</a>]   Sollins, K., "The TFTP Protocol (Revision 2)", <a href="./rfc783">RFC 783</a>,
          MIT/LCS, June 1981.




<span class="grey">Reynolds &amp; Postel                                              [Page 36]</span></pre>
<hr class='noprint'/><!--NewPage--><pre class='newpage'><span id="page-37" ></span>
<span class="grey">Assigned Numbers                                                 <a href="./rfc900">RFC 900</a></span>
Documents


   [<a id="ref-88">88</a>]   Solomon, M., L. Landweber, and D, Neuhengen, "The CSNET Name
          Server", Computer Networks, v.6, n.3, pp. 161-172, July 1982.

   [<a id="ref-89">89</a>]   Solomon, M., and E. Wimmers, "Telnet Terminal Type Option",
          <a href="./rfc884">RFC 884</a>, University of Wisconsin, Madison, December 1983.

   [<a id="ref-90">90</a>]   Sproull, R., and E. Thomas, "A Networks Graphics Protocol",
          NIC 24308, 16 August 1974.  Also in [<a href="#ref-33" title="&quot;DoD Internet Host Table Specification&quot;">33</a>].

   [<a id="ref-91">91</a>]   Tappan, D.C., "The CRONUS Virtual Local Network", <a href="./rfc824">RFC 824</a>,
          Bolt Beranek and Newman, Inc., 26 August 1982.

   [<a id="ref-92">92</a>]   "The Ethernet, a Local Area Network: Data Link Layer and
          Physical Layer Specification", AA-K759B-TK, Digital Equipment
          Corporation, Maynard, VA.

   [<a id="ref-93">93</a>]   "The Ethernet - A Local Area Network", Version 1.0, Digital
          Equipment Corporation, Intel Corporation, Xerox Corporation,
          September 1980.

   [<a id="ref-94">94</a>]   The High Level Protocol Group, "A Network Independent File
          Transfer Protocol",  INWG Protocol Note 86, December 1977.

   [<a id="ref-95">95</a>]   Whelan, D., "The Caltech Computer Science Department Network",
          5052:DF:82, Caltech Computer Science Department, 1982.

   [<a id="ref-96">96</a>]   XEROX, "The Ethernet, A Local Area Network: Data Link Layer
          and Physical Layer Specification", X3T51/80-50, Xerox
          Corporation, Stamford, CT., October 1980.

   [<a id="ref-97">97</a>]   XEROX, "Internet Transport Protocols",  XSIS 028112, Xerox
          Corporation, Stamford, Connecticut, December 1981.


















<span class="grey">Reynolds &amp; Postel                                              [Page 37]</span></pre>
<hr class='noprint'/><!--NewPage--><pre class='newpage'><span id="page-38" ></span>
<span class="grey">Assigned Numbers                                                 <a href="./rfc900">RFC 900</a></span>
People


                                 PEOPLE

   [<a id="ref-AB13">AB13</a>]    Alison Brown        CORNELL   alison@Cornell.ARPA
   [AGM]     Andy Malis          BBN       Malis@BBN-UNIX.ARPA
   [APS]     Anita Skelton       MITRE     skelton@MITRE.ARPA
   [AP]      Alan Parker         NRL       parker@NRL-CSS.ARPA
   [AV]      Al Vezza            MIT       AV@MIT-XX.ARPA
   [AXC]     Albert Cheng        UIUC      acheng.uiuc@csnet-relay.ARPA
   [AXG]     Atul Garg           HP        ---none---
   [AXG1]    Alfred Ganz         YALE      GANZ@YALE
   [AY5]     Akiharu Yasuda      DODIIS    dia@PAXRV-NES.ARPA
   [BG5]     Bob Gilligan        SRI       Gilligan@SRI-KL.ARPA
   [BIM]     Benson I. Margulies Honeywell Margulies@CISL.ARPA
   [BML]     Barry Leiner        ARPA      Leiner@USC-ISIA.ARPA
   [BXA]     Bobby W. Allen      YPG       WYMER@OFFICE.ARPA
   [CAK]     Chris Kent          PURDUE    Kent@PURDUE.ARPA
   [CC2]     Chase Cotton        UDEL      Cotton@Udel-EE.ARPA
   [CH2]     Charles Hornig      Symbolics Hornig@MIT-MC.ARPA
   [CJW2]    Cliff Weinstein     LL        cjw@LL-11.ARPA
   [CLH3]    Charles Hedrick     RUTGERS   Hedrick@RUTGERS.ARPA
   [CMR]     Craig Rogers        ISI       Rogers@USC-ISIB.ARPA
   [CXL]     Clifford A. Lynch   UCB       UCDLA@BBNCCY.ARPA
   [DAM1]    David A. Mosher     UCB       Mosher@BERKELEY.ARPA
   [DCP1]    David Plummer       MIT       DCP@MIT-MC.ARPA
   [DCT]     Dan Tappan          BBN       Tappan@BBNG.ARPA
   [DDC2]    Dave Clark          MIT-LCS   Clark@MIT-Multics.ARPA
   [DHH]     Doug Hunt           BBN       DHunt@BBN-Unix.ARPA
   [DJF]     David J. Farber     U of Del. Farber@Udel-ee.ARPA
   [DK2]     Dean B. Krafft      CORNELL   Dean@CORNELL.ARPA
   [DLM1]    David Mills         LINKABIT  Mills@USC-ISID.ARPA
   [DM11]    Dale McNeill        BBN       mcneill@BBN-Unix.ARPA
   [DPR]     David Reed          MIT-LCS   DPR@MIT-XX.ARPA
   [DSW]     Dan Whelan          Caltech   Dan@CIT-20.ARPA
   [DXD]     Dennis J.W. Dube    VIA Systems ---none---
   [DXH]     Douglas Hirsch      BBN       hirsch@bbn-unix.ARPA
   [EAK1]    Earl Killian        LLL       EAK@MIT-MC.ARPA
   [EBM]     Eliot Moss          MIT       EBM@MIT-XX.ARPA
   [EC5]     Ed Cain             DCEC      cain@EDN-Unix.ARPA
   [EF5]     Ed Franceschini     NYU       Franceschini@NYU.ARPA
   [EHP]     Ed Perry            SRI       Perry@SRI-KL.ARPA
   [FAS]     Fred Segovich       Compion   fred@COMPION-VMS.ARPA
   [FLM2]    F. Lee Maybaum      MILNET    Maybaum@DDN1
   [GEOF]    Geoff Goodfellow    SRI       Geoff@DARCOM-KA.ARPA
   [GXH]     Glenn I. Hastie II  SRI       Hastie@SRI-SPAM.ARPA
   [HA]      Howard Alt          AIDS      alt@aids-unix.ARPA
   [HCF2]    Harry Forsdick      BBN       Forsdick@BBNG.ARPA
   [HDC1]    Horst Clausen       DFVLR     Clausen@USC-ISID.ARPA
   [HDW2]    Howard Wactlar      CMU       Wactlar@CMU-CS-A.ARPA


<span class="grey">Reynolds &amp; Postel                                              [Page 38]</span></pre>
<hr class='noprint'/><!--NewPage--><pre class='newpage'><span id="page-39" ></span>
<span class="grey">Assigned Numbers                                                 <a href="./rfc900">RFC 900</a></span>
People


   [<a id="ref-HGM">HGM</a>]     Hallam Murray       PARC      Murray.PA@PARC-MAXC.ARPA
   [HM]      Hank Magnuski       ---       JOSE@PARC-MAXC.ARPA
   [JA1]     Jules P. Aronson    NLM       Aronson@nlm-mcs.ARPA
   [JAKE]    Jake Feinler        SRI       Feinler@SRI-KL.ARPA
   [JAR4]    Jim Rees            WASHINGTON JIM@WASHINGTON.ARPA
   [JAW3]    Jil Westcott        BBN       Westcott@BBNF.ARPA
   [JBP]     Jon Postel          ISI       Postel@USC-ISIF.ARPA
   [JBW1]    Joseph Walters, Jr. BBN       JWalters@BBN-UNIX.ARPA
   [JC11]    Jim Clifford        LANL      jrc@LANL.ARPA
   [JCM]     Jeff Mogul          STANFORD  Mogul@SU-SCORE.ARPA
   [JD21]    Jonathan Dreyer     BBN       JDreyer@BBN-Unix.ARPA
   [JDG]     Jim Guyton          RAND      guyton@RAND-Unix.ARPA
   [JEM]     Jim Mathis          SRI       Mathis@SRI-KL.ARPA
   [JFH2]    Jack Haverty        BBN       Haverty@BBN-Unix.ARPA
   [JGH]     Jim Herman          BBN       Herman@BBN-Unix.ARPA
   [JKR1]    Joyce K. Reynolds   ISI       JKREYNOLDS@USC-ISIF.ARPA
   [JO5]     John O'Donnell      YALE      ODonnell@YALE.ARPA
   [JR17]    John L. Robinson    CANADA    DREO-CRC@USC-ISID.ARPA
   [JRM1]    John Mullen         MITRE     Mullen@MITRE.ARPA
   [JS38]    Joseph Sventek      LBL       j@LBL-CSAM.ARPA
   [JSG5]    Jon Goodridge       BBN       jsg@BBN-UNIX.ARPA
   [JSQ1]    John S. Quarterman  UT        jsq@ut-sally.ARPA
   [JWF]     Jim Forgie          LL        Forgie@BBNC.ARPA
   [JXS]     Jeffrey R. Schwab   PURDUE    jrs@PURDUE.ARPA
   [KLH]     Ken Harrenstien     SRI       KLH@NIC.ARPA
   [KRS]     Karen Sollins       MIT       Sollins@MIT-XX.ARPA
   [KTP]     Kenneth T. Pogran   BBN       Pogran@BBN-UNIX.ARPA
   [KWP]     Kevin W. Paetzold   DEC       Paetzold@DEC-MARLBORO.ARPA
   [LB1]     Liudvikas Bukys     ROCHESTER Bukys@ROCHESTER.ARPA
   [LCN]     Lou Nelson          AEROSPACE Lou@AEROSPACE.ARPA
   [LCS]     Lou Schreier        SRI       Schreier@USC-ISID.ARPA
   [LH2]     Lincoln Hu          COLUMBIA  Hu@Columbia-20.ARPA
   [LLG]     Larry Garlick       XEROX     Garlick@PARC-MAXC.ARPA
   [LM8]     Liza Martin         MIT-LCS   Martin@MIT-XX.ARPA
   [LRB]     Larry Bierma        NPRDC     Bierma@NPRDC.ARPA
   [MA]      Mike Accetta        CMU       Accetta@CMU-CS-A.ARPA
   [MBG]     Michael Greenwald   MIT-LCS   Greenwald@MIT-Multics.ARPA
   [MB]      Michael Brescia     BBN       Brescia@BBN-Unix.ARPA
   [MCSJ]    Mike StJohns        AFDSC     StJohns@MIT-MULTICS.ARPA
   [MDC]     Martin D. Connor    MIT AI    Marty@MIT-MC.ARPA
   [MH12]    Mark Horton         ATT       mark@BERKELEY.ARPA
   [MHS1]    Marvin Solomon      WISC      Solomon@UWISC.ARPA
   [MJM2]    Mike Muuss          BRL       Mike@BRL.ARPA
   [MO2]     Michael O'Brien     RAND      OBrien@RAND-Unix.ARPA
   [MRC]     Mark Crispin        Stanford  Admin.MRC@SU-SCORE.ARPA
   [MS9]     Martin Schoffstall  CADMUS    decvax!yvax!marty@Berkeley
   [MXB]     Mark Brown          USC       Mark@USC-ECLB.ARPA
   [MXF]     Martin J. Fouts     NASA-Ames nep.fouts@ames-amelia.ARPA


<span class="grey">Reynolds &amp; Postel                                              [Page 39]</span></pre>
<hr class='noprint'/><!--NewPage--><pre class='newpage'><span id="page-40" ></span>
<span class="grey">Assigned Numbers                                                 <a href="./rfc900">RFC 900</a></span>
People


   [<a id="ref-MXP">MXP</a>]     Michael K. Peterson HUGHES    scgvaxd!mkp@cit-vax.ARPA
   [MXR]     Marshall Rose       Irvine    MRose.UCI@RAND-Relay.ARPA
   [MXM]     Marc M. Meilleur    COINS     COINS@USC-ISI.ARPA
   [MXS]     Marc Shapiro        INRIA     Shapiro@CMU-CS-C.ARPA
   [NC3]     J. Noel Chiappa     MIT       JNC@MIT-XX.ARPA
   [NXK]     Neil Katin          HP        hpda.neil@BERKELEY.ARPA
   [PAM6]    Paul McNabb         RICE      pam@PURDUE.ARPA
   [PG3]     Phill Gross         LINKABIT  gross@dcn7.ARPA
   [PGM]     Paul G. Milazzo     RICE      Milazzo@RICE.ARPA
   [PK]      Peter Kirstein      UCL       Kirstein@USC-ISIA.ARPA
   [PM1]     Paul Mockapetris    ISI       Mockapetris@USC-ISIF.ARPA
   [PS3]     Paal Spilling       NDRE      Paal@NTA-VAX.ARPA
   [PXD]     Pieter Ditmars      BBN       pditmars@BBN-UNIX.ARPA
   [PXK]     Paul Kirton         ISI       Kirton@USC-ISIF.ARPA
   [PXM]     Pat Marques         NSRDC     marques@dtrc.ARPA
   [PXN]     Peter Nellessen     SIEMENS   crtvax!pn@CMU-CS-SPICE.ARPA
   [RA11]    Rick Adams          CCI       rlgvax!ra@SEISMO.ARPA
   [RB6]     Richard Bisbey      ISI       Bisbey@USC-ISIB.ARPA
   [RBW]     Richard B. Wales    UCLA      wales@UCLA-LOCUS.ARPA
   [RC7]     Robert Cole         UCL       robert@ucl-cs.ARPA
   [RDB2]    Robert Bressler     BBN       Bressler@BBN-Unix.ARPA
   [RDR4]    Dennis Rockwell     BBN       DRockwell@BBN-UNIX.ARPA
   [REK2]    Robert Kahn         ARPA      Kahn@USC-ISIA.ARPA
   [RF1]     Randy Frank         UTAH      Frank@UTAH-20.ARPA
   [RH6]     Robert Hinden       BBN       Hinden@BBN-Unix.ARPA
   [RHT]     Robert Thomas       BBN       BThomas@BBNG.ARPA
   [RK1]     Richard Kovalcik    Honeywell Kovalcik@MIT-MULTICS.ARPA
   [RLB1]    Bob Brown           USRA      rlb@ames-vmsb.ARPA
   [RLB3]    Ronald L. Broersma  NOSC      Ron@NOSC.ARPA
   [RLH2]    Ronald L. Hartung   NSWC      ron@nswc-wo.ARPA
   [RNM1]    Neil MacKenzie      RSRE      T45@USC-ISID.ARPA
   [RR2]     Raleigh Romine      Teledyne  romine@SEISMO.ARPA
   [RS23]    Russel Sandberg     WISC      root@UWISC.ARPA
   [RTB]     Bob Braden          UCLA      Braden@USC-ISIA.ARPA
   [RWS4]    Robert W. Scheifler ARGUS     RWS@MIT-XX.ARPA
   [RXR]     Ron Reisor          UDEL      ron.udel-cc-relay@udel.ARPA
   [RXS]     Ronald L. Smith     COINS     COINS@USC-ISIA.ARPA
   [SA1]     Sten Andler         ARPA     andler.ibm-sj@csnet-relay.ARPA
   [SC3]     Steve Casner        ISI       Casner@USC-ISIB.ARPA
   [SGC]     Steve Chipman       BBN       Chipman@BBNA.ARPA
   [SK]      Steve Kille         UCL       UKSAT@USC-ISID.ARPA
   [SXB]     Steve Byrne         TARTAN    Byrne@CMU-CS-C.ARPA
   [SXB1]    Scott Bradner       HARVARD   bradner@HARV.10.ARPA
   [SXM]     Scott Marcus        Spartacus ---none---
   [TBS]     Claude S. Steffey   WSMR      csteffey@wsmr70a.ARPA
   [TC4]     Tony Cincotta       DTNSRDC   tony@NALCON.ARPA
   [TXF]     Thomas Ferrin       UCSF      ucsfcgl!tef@Berkeley.ARPA
   [TXN]     Todd Nugent         U Chicago Nugent@ANL-MCS.ARPA


<span class="grey">Reynolds &amp; Postel                                              [Page 40]</span></pre>
<hr class='noprint'/><!--NewPage--><pre class='newpage'><span id="page-41" ></span>
<span class="grey">Assigned Numbers                                                 <a href="./rfc900">RFC 900</a></span>
People


   [<a id="ref-UXB">UXB</a>]     Ulf Bilting         CHALMERS  bilting@purdue.ARPA
   [WIM]     William Macgregor   BBN       macg@BBN.ARPA
   [WNJ]     Bill Joy            SMI       sun!wnj@BERKELEY.ARPA
   [ZSU]     Zaw-Sing Su         SRI       ZSu@SRI-TSC.ARPA














































<span class="grey">Reynolds &amp; Postel                                              [Page 41]</span></pre>
<hr class='noprint'/><!--NewPage--><pre class='newpage'><span id="page-42" ></span>
<span class="grey">Assigned Numbers                                                 <a href="./rfc900">RFC 900</a></span>
Appendix A


                               APPENDIX A

   Network Numbers

      The network numbers in class A, B, and C network addresses are
      allocated among Research, Defense, Government (Non-Defense) and
      Commercial uses.

      Class A (highest-order bit 0)

         Research allocation:             8
         Defense allocation:             24
         Government allocation:          24
         Commercial allocation:          94
         Reserved Addresses:   (0, 127)
         Total                          128

      Class B (highest-order bits 1-0)

         Research allocation:          1024
         Defense allocation:           3072
         Government allocation:        3072
         Commercial allocation:       12286
         Reserved Addresses: (0, 16383)
         Total                        16384

      Class C (highest-order bits 1-1-0)

         Research allocation:           65536
         Defense allocation:           458725
         Government allocation:        458725
         Commercial allocation:       1572862
         Reserved Addresses: (0, 2097151)
         Total                        2097152

      Class D (highest-order bits 1-1-1)

         All addresses in this class are reserved for future use.

      Within the Research community, network identifiers will only be
      granted to applicants who show evidence that they are acquiring
      standard Bolt Beranek and Newman gateway software or have
      implemented or are acquiring a gateway meeting the Exterior
      Gateway Protocol requirements.  Acquisition of the Berkeley BSD
      4.2 UNIX software might be considered evidence of the latter.





<span class="grey">Reynolds &amp; Postel                                              [Page 42]</span></pre>
<hr class='noprint'/><!--NewPage--><pre class='newpage'><span id="page-43" ></span>
<span class="grey">Assigned Numbers                                                 <a href="./rfc900">RFC 900</a></span>
Appendix A


      Experimental networks which later become operational need not be
      renumbered.  Rather, the identifiers could be moved from Research
      to Defense, Government or Commercial status.  Thus, network
      identifiers may change state among Research, Defense, Government
      and Commercial, but the number of identifiers allocated to each
      use must remain within the limits indicated above.  To make
      possible this fluid assignment, the network identifier spaces are
      not allocated by simple partition, but rather by specific
      assignment.

   Protocol Identifiers

      These assignments are shared by the four communities.

   Port Numbers

      These assignments are shared by the four communities.

   ARPANET Link Numbers

      These assignments are shared by the four communities.

   IP Version Numbers

      These assignments are shared by the four communities.

   TCP, IP and Telnet Option Identifiers

      These assignments are shared by the four communities.

   Implementation:

      Joyce Reynolds is the coordinator for all number assignments.

















Reynolds &amp; Postel                                              [Page 43]
</pre>