IANA Allocation Guidelines for TCP and UDP Port Numbers

Document Type Replaced Internet-Draft (individual)
Authors Michelle Cotton  , Lars Eggert  , Allison Mankin  , Magnus Westerlund 
Last updated 2008-07-07 (latest revision 2008-02-18)
Replaced by RFC 6335
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Intended RFC status (None)
Expired & archived
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document defines the IANA guidelines for registering new port number values for use with the Transmission Control Protocol (TCP) and User Datagram Protocol (UDP). It provides clear processes for the TCP and UDP port number registries, important for their long-term management. It updates RFC2780 by replacing Sections 8 and 9.1 of that RFC.


Michelle Cotton (michelle.cotton@icann.org)
Lars Eggert (lars@netapp.com)
Allison Mankin (mankin@psg.com)
Magnus Westerlund (magnus.westerlund@ericsson.com)

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)