| 4516 | Lightweight Directory Access Protocol (LDAP): Uniform Resource LocatorM. Smith, Ed., T. Howes | Proposed Standard | June 2006 |
| 4173 | Bootstrapping Clients using the Internet Small Computer System Interface (iSCSI) ProtocolP. Sarkar, D. Missimer, C. Sapuntzakis | Proposed Standard | September 2005 |
| 4038 | Application Aspects of IPv6 TransitionM-K. Shin, Ed., Y-G. Hong, J. Hagino, P. Savola, E. M. Castro | Informational | March 2005 |
| 4007 | IPv6 Scoped Address ArchitectureS. Deering, B. Haberman, T. Jinmei, E. Nordmark, B. Zill | Proposed Standard | March 2005 |
| 3986 | Uniform Resource Identifier (URI): Generic SyntaxT. Berners-Lee, R. Fielding, L. Masinter | Internet Standard | January 2005 |
| 3981 | IRIS: The Internet Registry Information Service (IRIS) Core ProtocolA. Newton, M. Sanz | Proposed Standard | January 2005 |
| 3931 | Layer Two Tunneling Protocol - Version 3 (L2TPv3)J. Lau, Ed., M. Townsley, Ed., I. Goyret, Ed. | Proposed Standard | March 2005 |
| 3875 | The Common Gateway Interface (CGI) Version 1.1D. Robinson, K. Coar | Informational | October 2004 |
| 3795 | Survey of IPv4 Addresses in Currently Deployed IETF Application Area Standards Track and Experimental DocumentsR. Sofia, P. Nesser, II | Informational | June 2004 |
| 3794 | Survey of IPv4 Addresses in Currently Deployed IETF Transport Area Standards Track and Experimental DocumentsP. Nesser, II, A. Bergstrom, Ed. | Informational | June 2004 |
| 3722 | String Profile for Internet Small Computer Systems Interface (iSCSI) NamesM. Bakke | Proposed Standard | April 2004 |
| 3721 | Internet Small Computer Systems Interface (iSCSI) Naming and DiscoveryM. Bakke, J. Hafner, J. Hufferd, K. Voruganti, M. Krueger | Informational | April 2004 |
| 3720 | Internet Small Computer Systems Interface (iSCSI)J. Satran, K. Meth, C. Sapuntzakis, M. Chadalapaka, E. Zeidner · obsoleted by RFC 7143 | Proposed Standard | April 2004 |
| 3617 | Uniform Resource Identifier (URI) Scheme and Applicability Statement for the Trivial File Transfer Protocol (TFTP)E. Lear | Informational | October 2003 |
| 3529 | Using Extensible Markup Language-Remote Procedure Calling (XML-RPC) in Blocks Extensible Exchange Protocol (BEEP)W. Harold | Experimental | April 2003 |
| 3510 | Internet Printing Protocol/1.1: IPP URL SchemeR. Herriot, I. McDonald | Proposed Standard | April 2003 |
| 3419 | Textual Conventions for Transport AddressesM. Daniele, J. Schoenwaelder | Proposed Standard | December 2002 |
| 3275 | (Extensible Markup Language) XML-Signature Syntax and ProcessingD. Eastlake 3rd, J. Reagle, D. Solo | Draft Standard | March 2002 |
| 3266 | Support for IPv6 in Session Description Protocol (SDP)S. Olson, G. Camarillo, A. B. Roach · obsoleted by RFC 4566 | Proposed Standard | July 2002 |
| 3236 | The 'application/xhtml+xml' Media TypeM. Baker, P. Stark | Informational | January 2002 |
| 3111 | Service Location Protocol Modifications for IPv6E. Guttman | Proposed Standard | May 2001 |
| 3075 | XML-Signature Syntax and ProcessingD. Eastlake 3rd, J. Reagle, D. Solo · obsoleted by RFC 3275 | Proposed Standard | March 2001 |