| 8753 | Internationalized Domain Names for Applications (IDNA) Review for New Unicode VersionsJ. Klensin, P. Fältström | Proposed Standard | April 2020 |
| 5646 | Tags for Identifying LanguagesA. Phillips, Ed., M. Davis, Ed. | Best Current Practice | September 2009 |
| 5645 | Update to the Language Subtag RegistryD. Ewell, Ed. | Informational | September 2009 |
| 4647 | Matching of Language TagsA. Phillips, Ed., M. Davis, Ed. | Best Current Practice | September 2006 |
| 4646 | Tags for Identifying LanguagesA. Phillips, M. Davis · obsoleted by RFC 5646 | Best Current Practice | September 2006 |
| 4645 | Initial Language Subtag RegistryD. Ewell | Informational | September 2006 |
| 4021 | Registration of Mail and MIME Header FieldsG. Klyne, J. Palme | Proposed Standard | March 2005 |
| 3367 | Common Name Resolution Protocol (CNRP)N. Popp, M. Mealling, M. Moseley | Proposed Standard | September 2002 |
| 3282 | Content Language HeadersH. Alvestrand | Draft Standard | May 2002 |
| 3106 | ECML v1.1: Field Specifications for E-CommerceD. Eastlake 3rd, T. Goldstein | Informational | April 2001 |
| 3080 | The Blocks Extensible Exchange Protocol CoreM. Rose | Proposed Standard | March 2001 |
| 3066 | Tags for the Identification of LanguagesH. Alvestrand · obsoleted by RFC 4646, RFC 4647 | Best Current Practice | January 2001 |
| 2987 | Registration of Charset and Languages Media Features TagsP. Hoffman | Proposed Standard | November 2000 |
| 2967 | TISDAG - Technical Infrastructure for Swedish Directory Access GatewaysL. Daigle, R. Hedberg | Informational | October 2000 |
| 2958 | The application/whoispp-response Content-typeL. Daigle, P. Faltstrom | Informational | October 2000 |
| 2957 | The application/whoispp-query Content-TypeL. Daigle, P. Faltstrom | Informational | October 2000 |
| 2932 | IPv4 Multicast Routing MIBK. McCloghrie, D. Farinacci, D. Thaler · obsoleted by RFC 5132 | Proposed Standard | October 2000 |
| 2926 | Conversion of LDAP Schemas to and from SLP TemplatesJ. Kempf, R. Moats, P. St. Pierre | Informational | September 2000 |
| 2911 | Internet Printing Protocol/1.1: Model and SemanticsT. Hastings, Ed., R. Herriot, R. deBry, S. Isaacson, P. Powell · obsoleted by RFC 8011 | Proposed Standard | September 2000 |
| 2910 | Internet Printing Protocol/1.1: Encoding and TransportR. Herriot, Ed., S. Butler, P. Moore, R. Turner, J. Wenn · obsoleted by RFC 8010 | Proposed Standard | September 2000 |
| 2731 | Encoding Dublin Core Metadata in HTMLJ. Kunze · obsoleted by RFC 5791 | Informational | December 1999 |
| 2730 | Multicast Address Dynamic Client Allocation Protocol (MADCAP)S. Hanna, B. Patel, M. Shah | Proposed Standard | December 1999 |
| 2707 | Job Monitoring MIB - V1.0R. Bergman, T. Hastings, S. Isaacson, H. Lewis | Informational | November 1999 |
| 2640 | Internationalization of the File Transfer ProtocolB. Curtin | Proposed Standard | July 1999 |
| 2616 | Hypertext Transfer Protocol -- HTTP/1.1R. Fielding, J. Gettys, J. Mogul, H. Frystyk, L. Masinter, P. Leach, T. Berners-Lee · obsoleted by RFC 7230, RFC 7231, RFC 7232, RFC 7233, RFC 7234, RFC 7235 | Draft Standard | June 1999 |
| 2614 | An API for Service LocationJ. Kempf, E. Guttman | Informational | June 1999 |
| 2609 | Service Templates and Service: SchemesE. Guttman, C. Perkins, J. Kempf | Proposed Standard | June 1999 |
| 2608 | Service Location Protocol, Version 2E. Guttman, C. Perkins, J. Veizades, M. Day | Proposed Standard | June 1999 |
| 2596 | Use of Language Codes in LDAPM. Wahl, T. Howes · obsoleted by RFC 3866 | Proposed Standard | May 1999 |
| 2566 | Internet Printing Protocol/1.0: Model and SemanticsR. deBry, T. Hastings, R. Herriot, S. Isaacson, P. Powell · obsoleted by RFC 2911 | Experimental | April 1999 |
| 2565 | Internet Printing Protocol/1.0: Encoding and TransportR. Herriot, Ed., S. Butler, P. Moore, R. Turner · obsoleted by RFC 2910 | Experimental | April 1999 |
| 2518 | HTTP Extensions for Distributed Authoring -- WEBDAVY. Goland, E. Whitehead, A. Faizi, S. Carter, D. Jensen · obsoleted by RFC 4918 | Proposed Standard | February 1999 |
| 2510 | Internet X.509 Public Key Infrastructure Certificate Management ProtocolsC. Adams, S. Farrell · obsoleted by RFC 4210 | Proposed Standard | March 1999 |
| 2484 | PPP LCP Internationalization Configuration OptionG. Zorn | Proposed Standard | January 1999 |
| 2482 | Language Tagging in Unicode Plain TextK. Whistler, G. Adams · obsoleted by RFC 6082 | Historic | January 1999 |
| 2445 | Internet Calendaring and Scheduling Core Object Specification (iCalendar)F. Dawson, D. Stenerson · obsoleted by RFC 5545 | Proposed Standard | November 1998 |
| 2426 | vCard MIME Directory ProfileF. Dawson, T. Howes · obsoleted by RFC 6350 | Proposed Standard | September 1998 |
| 2425 | A MIME Content-Type for Directory InformationT. Howes, M. Smith, F. Dawson · obsoleted by RFC 6350 | Proposed Standard | September 1998 |
| 2421 | Voice Profile for Internet Mail - version 2G. Vaudreuil, G. Parsons · obsoleted by RFC 3801 | Proposed Standard | September 1998 |
| 2413 | Dublin Core Metadata for Resource DiscoveryS. Weibel, J. Kunze, C. Lagoze, M. Wolf · obsoleted by RFC 5013 | Informational | September 1998 |
| 2327 | SDP: Session Description ProtocolM. Handley, V. Jacobson · obsoleted by RFC 4566 | Proposed Standard | April 1998 |
| 2277 | IETF Policy on Character Sets and LanguagesH. Alvestrand | Best Current Practice | January 1998 |
| 2244 | ACAP -- Application Configuration Access ProtocolC. Newman, J. G. Myers | Proposed Standard | November 1997 |
| 2237 | Japanese Character Encoding for Internet MessagesK. Tamaru | Informational | November 1997 |
| 2231 | MIME Parameter Value and Encoded Word Extensions: Character Sets, Languages, and ContinuationsN. Freed, K. Moore | Proposed Standard | November 1997 |
| 2218 | A Common Schema for the Internet White Pages ServiceT. Genovese, B. Jennings | Proposed Standard | October 1997 |
| 2184 | MIME Parameter Value and Encoded Word Extensions: Character Sets, Languages, and ContinuationsN. Freed, K. Moore · obsoleted by RFC 2231 | Proposed Standard | August 1997 |
| 2165 | Service Location ProtocolJ. Veizades, E. Guttman, C. Perkins, S. Kaplan | Proposed Standard | June 1997 |
| 2156 | MIXER (Mime Internet X.400 Enhanced Relay): Mapping between X.400 and RFC 822/MIMES. Kille | Proposed Standard | January 1998 |
| 2130 | The Report of the IAB Character Set Workshop held 29 February - 1 March, 1996C. Weider, C. Preston, K. Simonsen, H. Alvestrand, R. Atkinson, M. Crispin, P. Svanberg | Informational | April 1997 |
| 2076 | Common Internet Message HeadersJ. Palme | Informational | February 1997 |
| 2070 | Internationalization of the Hypertext Markup LanguageF. Yergeau, G. Nicol, G. Adams, M. Duerst · obsoleted by RFC 2854 | Historic | January 1997 |
| 2068 | Hypertext Transfer Protocol -- HTTP/1.1R. Fielding, J. Gettys, J. Mogul, H. Frystyk, T. Berners-Lee · obsoleted by RFC 2616 | Proposed Standard | January 1997 |
| 2060 | Internet Message Access Protocol - Version 4rev1M. Crispin · obsoleted by RFC 3501 | Proposed Standard | December 1996 |
| 1942 | HTML TablesD. Raggett · obsoleted by RFC 2854 | Historic | May 1996 |
| 1898 | CyberCash Credit Card Protocol Version 0.8D. Eastlake 3rd, B. Boesch, S. Crocker, M. Yesil | Informational | February 1996 |
| 1896 | The text/enriched MIME Content-typeP. Resnick, A. Walker | Informational | February 1996 |
| 1835 | Architecture of the WHOIS++ serviceP. Deutsch, R. Schoultz, P. Faltstrom, C. Weider | Historic | August 1995 |