| RFC | Title | Status | Reference | Notes |
|---|---|---|---|---|
| 318 | Telnet Protocol | Status Unknown | J. Postel (3 April 1972). Telnet Protocol. Network Working Group. doi:10.17487/RFC0318. RFC 318. | NIC 9348. Updated by RFC 435. |
| 322 | Well Known Socket Numbers | Status Unknown | V. Cerf; J. Postel (26 March 1972). Well Known Socket Numbers. Network Working Group. doi:10.17487/RFC0322. RFC 322. | NIC 9609. |
| 349 | Proposed Standard Socket Numbers | Status Unknown | J. Postel (30 May 1972). Proposed Standard Socket Numbers. Network Working Group. doi:10.17487/RFC0349. RFC 349. | NIC 10428. Obsoleted by RFC 433. |
