| 1393 | Traceroute Using an IP OptionG. Malkin · obsoleted by RFC 6814 | Historic | January 1993 |
| 1619 | PPP over SONET/SDHW. Simpson · obsoleted by RFC 2615 | Proposed Standard | May 1994 |
| 2436 | Collaboration between ISOC/IETF and ITU-TR. Brett, S. Bradner, G. Parsons · obsoleted by RFC 3356 | Informational | October 1998 |
| 2615 | PPP over SONET/SDHA. Malis, W. Simpson | Proposed Standard | June 1999 |
| 3031 | Multiprotocol Label Switching ArchitectureE. Rosen, A. Viswanathan, R. Callon | Proposed Standard | January 2001 |
| 3032 | MPLS Label Stack EncodingE. Rosen, D. Tappan, G. Fedorkow, Y. Rekhter, D. Farinacci, T. Li, A. Conta | Proposed Standard | January 2001 |
| 3245 | The History and Context of Telephone Number Mapping (ENUM) Operational Decisions: Informational Documents Contributed to ITU-T Study Group 2 (SG2)J. Klensin, Ed., IAB | Informational | March 2002 |
| 3270 | Multi-Protocol Label Switching (MPLS) Support of Differentiated ServicesF. Le Faucheur, Ed., L. Wu, B. Davie, S. Davari, P. Vaananen, R. Krishnan, P. Cheval, J. Heinanen | Proposed Standard | May 2002 |
| 3356 | Internet Engineering Task Force and International Telecommunication Union - Telecommunications Standardization Sector Collaboration GuidelinesG. Fishman, S. Bradner · obsoleted by RFC 6756 | Informational | August 2002 |
| 3429 | Assignment of the 'OAM Alert Label' for Multiprotocol Label Switching Architecture (MPLS) Operation and Maintenance (OAM) FunctionsH. Ohta | Informational | November 2002 |
| 4379 | Detecting Multi-Protocol Label Switched (MPLS) Data Plane FailuresK. Kompella, G. Swallow · obsoleted by RFC 8029 | Proposed Standard | February 2006 |
| 4775 | Procedures for Protocol Extensions and VariationsS. Bradner, B. Carpenter, Ed., T. Narten | Best Current Practice | December 2006 |
| 4929 | Change Process for Multiprotocol Label Switching (MPLS) and Generalized MPLS (GMPLS) Protocols and ProceduresL. Andersson, Ed., A. Farrel, Ed. | Best Current Practice | June 2007 |
| 5129 | Explicit Congestion Marking in MPLSB. Davie, B. Briscoe, J. Tay | Proposed Standard | January 2008 |
| 5317 | Joint Working Team (JWT) Report on MPLS Architectural Considerations for a Transport ProfileS. Bryant, Ed., L. Andersson, Ed. | Informational | February 2009 |
| 5462 | Multiprotocol Label Switching (MPLS) Label Stack Entry: "EXP" Field Renamed to "Traffic Class" FieldL. Andersson, R. Asati | Proposed Standard | February 2009 |
| 5654 | Requirements of an MPLS Transport ProfileB. Niven-Jenkins, Ed., D. Brungard, Ed., M. Betts, Ed., N. Sprecher, S. Ueno | Proposed Standard | September 2009 |