틀:Ref RFC/db/4

RFC	Status	Reference	Notes
435	Unknown	B. Cosell; D. Walden (5 January 1973). TELNET Issues. Network Working Group. RFC 435. https://tools.ietf.org/html/rfc435.	NIC 13675.
495	Unknown	A. McKenzie (1 May 1973). TELNET Protocol Specification. Network Working Group. RFC 495. https://tools.ietf.org/html/rfc495.	NIC 15371. Updated by RFC 562.