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The original list of assigned blocks [1] is a fascinating glimpse of history. Some of the Class A networks are still recognizable (MIT, University College Londo
by divbzero 6y ago
The original list of assigned blocks [1] is a fascinating glimpse of history. Some of the Class A networks are still recognizable (MIT, University College London, Stanford) while others have faded in prominence (BBN, CISL, DEC, MITRE, Tymnet). The same 1981 document also contains a list of assigned ports which of course does not include DNS, HTTP(S), IMAP, POP, or SSH.
[1]: https://tools.ietf.org/html/rfc790 https://tools.ietf.org/html/rfc790 "RFC 790"
- kseifried 6y agoMITRE is a non profit that "manages federally funded research and development centers (FFRDCs) supporting several U.S. government agencies" they have a technology and cyber security mandate which is still big (they run CVE, CWE, SCAP, etc.). They haven't faded so much as they were never a public/network company in the first place.