| 908 | Reliable Data ProtocolD. Velten, R.M. Hinden, J. Sax | Experimental | July 1984 |
| 1030 | On testing the NETBLT Protocol over divers networksM.L. Lambert | Unknown | November 1987 |
| 1045 | VMTP: Versatile Message Transaction Protocol: Protocol specificationD.R. Cheriton | Experimental | February 1988 |
| 1122 | Requirements for Internet Hosts - Communication LayersR. Braden, Ed. | Internet Standard | October 1989 |
| 1144 | Compressing TCP/IP Headers for Low-Speed Serial LinksV. Jacobson | Proposed Standard | February 1990 |
| 1151 | Version 2 of the Reliable Data Protocol (RDP)C. Partridge, R.M. Hinden | Experimental | April 1990 |
| 1191 | Path MTU discoveryJ. Mogul, S. Deering | Draft Standard | November 1990 |
| 1323 | TCP Extensions for High PerformanceV. Jacobson, R. Braden, D. Borman · obsoleted by RFC 7323 | Proposed Standard | May 1992 |
| 1397 | Default Route Advertisement In BGP2 and BGP3 Version of The Border Gateway ProtocolD. Haskin | Historic | January 1993 |
| 1644 | T/TCP -- TCP Extensions for Transactions Functional SpecificationR. Braden · obsoleted by RFC 6247 | Historic | July 1994 |
| 1661 | The Point-to-Point Protocol (PPP)W. Simpson, Ed. | Internet Standard | July 1994 |
| 1928 | SOCKS Protocol Version 5M. Leech, M. Ganis, Y. Lee, R. Kuris, D. Koblas, L. Jones | Proposed Standard | March 1996 |
| 1986 | Experiments with a Simple File Transfer Protocol for Radio Links using Enhanced Trivial File Transfer Protocol (ETFTP)W. Polites, W. Wollman, D. Woo, R. Langan | Experimental | August 1996 |
| 2002 | IP Mobility SupportC. Perkins, Ed. · obsoleted by RFC 3220 | Proposed Standard | October 1996 |
| 2003 | IP Encapsulation within IPC. Perkins | Proposed Standard | October 1996 |
| 2004 | Minimal Encapsulation within IPC. Perkins | Proposed Standard | October 1996 |
| 2018 | TCP Selective Acknowledgment OptionsM. Mathis, J. Mahdavi, S. Floyd, A. Romanow | Proposed Standard | October 1996 |
| 2140 | TCP Control Block InterdependenceJ. Touch · obsoleted by RFC 9040 | Informational | April 1997 |
| 2188 | AT&T/Neda's Efficient Short Remote Operations (ESRO) Protocol Specification Version 1.2M. Banan, M. Taylor, J. Cheng | Informational | September 1997 |
| 2246 | The TLS Protocol Version 1.0T. Dierks, C. Allen · obsoleted by RFC 4346 | Historic | January 1999 |
| 2309 | Recommendations on Queue Management and Congestion Avoidance in the InternetB. Braden, D. Clark, J. Crowcroft, B. Davie, S. Deering, D. Estrin, S. Floyd, V. Jacobson, G. Minshall, C. Partridge, L. Peterson, K. Ramakrishnan, S. Shenker, J. Wroclawski, L. Zhang · obsoleted by RFC 7567 | Informational | April 1998 |
| 2393 | IP Payload Compression Protocol (IPComp)A. Shacham, R. Monsour, R. Pereira, M. Thomas · obsoleted by RFC 3173 | Proposed Standard | December 1998 |
| 2414 | Increasing TCP's Initial WindowM. Allman, S. Floyd, C. Partridge · obsoleted by RFC 3390 | Experimental | September 1998 |
| 2415 | Simulation Studies of Increased Initial TCP Window SizeK. Poduri, K. Nichols | Informational | September 1998 |
| 2416 | When TCP Starts Up With Four Packets Into Only Three BuffersT. Shepard, C. Partridge | Informational | September 1998 |
| 2481 | A Proposal to add Explicit Congestion Notification (ECN) to IPK. Ramakrishnan, S. Floyd · obsoleted by RFC 3168 | Experimental | January 1999 |
| 2488 | Enhancing TCP Over Satellite Channels using Standard MechanismsM. Allman, D. Glover, L. Sanchez | Best Current Practice | January 1999 |
| 2507 | IP Header CompressionM. Degermark, B. Nordgren, S. Pink | Proposed Standard | February 1999 |
| 2508 | Compressing IP/UDP/RTP Headers for Low-Speed Serial LinksS. Casner, V. Jacobson | Proposed Standard | February 1999 |
| 2509 | IP Header Compression over PPPM. Engan, S. Casner, C. Bormann · obsoleted by RFC 3544 | Proposed Standard | February 1999 |
| 2581 | TCP Congestion ControlM. Allman, V. Paxson, W. Stevens · obsoleted by RFC 5681 | Proposed Standard | April 1999 |
| 2582 | The NewReno Modification to TCP's Fast Recovery AlgorithmS. Floyd, T. Henderson · obsoleted by RFC 3782 | Experimental | April 1999 |