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This is a modified version of the Internet RFC suitable for machine-translating. Original version is available here: RFC433

Obsoleted by: 503 UNKNOWN
Network Working Group                              Jon Postel (UCLA-NMC)
Request for Comments: 433                             Nancy Neigus (BBN)
NIC 13491                                               22 December 1972
Categories: Socket Numbers
References: 349
Socket Number List


The czar of socket numbers [Jon Postel] has established the following assignments for socket numbers used for public functions. Note that a socket number is a 40 bit quantity, the first 8 bits being the host specification, the next 24 bits being site specific, and the last 8 bits being user specified - these last 8 bits are called the AEN [it stands for, cleverly enough, Another Eightbit Number].

For the assignments here the value in the host field ranges across all hosts (unless otherwise specified), the value in the
24 bit field is zero, and the AEN is indicated here.
General Assignments:

Sockets Assignment
       0 - 63          Network Wide Standard Functions
       64 - 127        Host Specific Functions
128 - 239 Reserved for Future Use 240 - 255 Any Experimental Function


Particular Assignments:
       Socket          Assignment
1 Telnet 3 File Transfer 5 Remote Job Entry 7 Echo 9 Discard 19 Character Generator [e.g. TTYTST]

65 Speech Data Base @ ll-tx-2 (74) 67 Datacomputer @ cca (31)

241 NCP Measurement 243 Survey Measurement 245 LINK

The specifications for the assigned functions can be found in the documents listed here: Telnet RFC 318 File Transfer RFC 354 & RFC 385 Remote Job Entry RFC 407 Echo RFC 347 Discard RFC 348 Character Generator RFC 429 Speech Data Base SUR 37
Postel and Neigus                                               [Page 1]

RFC 433                    Socket Number List           22 December 1972
               Datacomputer            [Murray @ CCA]
               NCP Measurment          RFC 388
               Survey Data             [Kampe @ NMC]
LINK [Bressler @ BBN]


It has come to our attention that there are several hosts performing useful public services on sockets which conflict with the above scheme. We hope we can resolve this problem with a minimum of disruption.

The following is a tabulation of socket numbers together with the services offered. This listing is presented as an aid to network users. If you know of a socket/function which has been left out or an entry which should be corrected or deleted please contact:

Jon Postel 3804 Boelter Hall Computer Science Department University of California Los Angeles, CA. 90024

Phone: (213) 825-2368

NIC Ident = JBP

or

Nancy Neigus Bolt Beranek and Newman 50 Moulton Street Cambridge, Mass. 02139

Phone: (617) 661-0100

NIC Ident = NJN We will be pleased to include socket/function information for other than "offical" sockets [e.g Tip News].
Postel and Neigus                                               [Page 2]

RFC 433                    Socket Number List           22 December 1972
1 UCLA-NMC
1 Telnet 241 NCP Measurement 243 Survey Data
2 SRI-ARC
1 Telnet 3 File Transfer 5 Echo 7 CPYNET 9 SYSTAT 13 DATE-TIME
3 UCSB
1 Telnet 5 UCSB RJS [not ARPANET standard] 7 Echo 9 Discard
4 UTAH
1 Telnet 3 File Transfer 5 Echo 7 CPYNET 9 SYSTAT 13 DATE-TIME 5 NCC 6 MIT-Multics
1 Telnet
9 Harvard
1 Telnet 3 Sorry File Transfer
10 LL-67
1 Telnet
11 SAIL
1 Telnet 3 File Transfer 12 ILL-ANTS 13 CASE 1 Telnet 3 File Transfer 5 Echo 7 CPYNET 9 SYSTAT 13 DATE-TIME
14 CMU
1 Telnet 3 File Transfer
15 ILLIAC-TENEX
1 Telnet 3 File Transfer 5 Echo 7 CPYNET 9 SYSTAT 13 DATE-TIME
Postel and Neigus                                               [Page 3]

RFC 433                    Socket Number List           22 December 1972
16 NASA-AMES
1 Telnet 3 File Transfer 5 Sorry Remote Job Entry 7 Echo 9 Discard 241 NCP Measurement 23 USC-44 31 CCA-TENEX 1 Telnet 3 File Transfer 5 Echo 9 SYSTAT 11 NETSTAT
35 UCSD
1 Telnet
65 UCLA-CCN
1 Telnet 7 Echo 9 Discard 11 NETPJS [EBCDIC] 13 NETRJS [ASCII] 15 NETRJS [TTY]
66 SRI-AI
1 Telnet 3 DATE-TIME 5 Echo 7 CPYNET 9 SYSTAT 11 Sorry NETSTAT
69 BBN-TENEX (a)
1 Telnet 3 File Transfer 5 Echo 7 CPYNET 9 SYSTAT 13 DATE-TIME 15 NETSTAT 17 Oneliners 3604505 = x'370019' = o'15600031' TIP News
70 MIT-DMCG
1 Telnet 3 File Transfer 7 Network Status 9 Discard
74 LL-TX-2
1 Telnet
Postel and Neigus                                               [Page 4]

RFC 433                    Socket Number List           22 December 1972
78 CMU-alt
1 Telnet 3 File Transfer
86 ISI-TENEX
1 Telnet 3 File Transfer 5 Echo 7 CPYNET 9 SYSTAT 13 DATE-TIME
133 BBN-TENEXB
1 Telnet 3 File Transfer 5 Echo 7 CPYNET 9 SYSTAT 13 DATE-TIME 15 NETSTAT 17 Oneliners
134 MIT-AI
1 Telnet 3 File Transfer
198 MIT-Mathlab
1 Telnet 3 File Transfer

Following hosts not tested

7 RAND 8 SDC-ADEPT 19 NBS-ANTS 138 LL-TSP





[ This RFC was put into machine readable form for entry ]
[ into the online RFC archives by James Carlson 11/98 ]















Postel and Neigus [Page 5]

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