틀:Ref RFC/db/6
| RFC | Status | Reference | Notes |
|---|---|---|---|
| 675 | Obsolete | V. Cerf; Y. Dalal; C. Sunshine (December 1974). SPECIFICATION OF INTERNET TRANSMISSION CONTROL PROGRAM. Network Working Group. RFC 675. https://tools.ietf.org/html/rfc675. | Obsoleted by RFC 7805. NIC 2. INWG 72. |
| 698 | Obsolete | TELNET EXTENDED ASCII OPTION. IETF. July 1975. RFC 698. https://tools.ietf.org/html/rfc698. | Obsoleted by RFC 5198. NIC 32964. |