mckenzie@bbn.com (Alex McKenzie) (06/29/90)
Since there have been a number of questions about the history of network number assignments, I've searched the "Assigned Numbers" RFCs to see what light they could shed on the subject. Here's what I found: The first RFC which specified "numbers assigned to identify networks for use in the internetwork protocol experiments" was RFC 717 (1 July 1976). It gave the following 4 network numbers: BBNRCCnet 3 SanFranPRnet 7 ARPANET 10 BostonPRnet 11 The first RFC to assign all network numbers less than 11 was RFC 750 (26 September 1978). It gave the following assignments: 0 Reserved 1 BBN Packet Radio Net 2 SF Bay Area Packet Radio Net #1 3 BBN RCC Net 4 Atlantic Satellite Net 5 Washington DC Packet Radio Net 6 SF Bay Area Packet Radio Net #2 7 CHAOS Net 8 BBN SATNET Test Net 9 Ft. Gordon Packet Radio Net 10 ARPANET 11 University College London Net 12 CYCLADES [French national research net] 13 National Physical Laboratory [UK] 14 TELENET 15 British Post Office EPSS [Experimental Packet Switching Service] 16 DATAPAC 17 TRANSPAC 18 LCS Network [MIT] 19 TYMNET 20 Ft. Sill Packet Radio Net 21 DCEC EDN [Experimental Data Net] I can't see much pattern in the assignments, so this leaves the question of why ARPANET was given the number 10 unanswered. Maybe Jon or Vint has a recollection. The first RFC to divide the network numbering into Classes was RFC 790 (September 1981). It specified the Class A/B/C structure. At the time there were about 42 total network numbers assigned. I don't believe net 89 has ever been assigned via the "Assigned Numbers" RFCs. Alex McKenzie
gamiddle@maytag.waterloo.edu (Guy Middleton) (07/05/90)
In article <57885@bbn.BBN.COM> mckenzie@labs-n.bbn.com (Alex McKenzie) writes: > Since there have been a number of questions about the history of network > number assignments, I've searched the "Assigned Numbers" RFCs to see > what light they could shed on the subject. Here's what I found: A related question: in which document is the network number for the Central University of Mars assigned?