RFC 739 · HISTORIC · 1977 TUE · 15 SEP 2026

Assigned numbers

By J. Postel · Published November 1977 · DOI 10.17487/RFC0739

Overview

RFC 739, “Assigned numbers”, is a Historic document published in November 1977 by J. Postel. It obsoletes RFC 503, RFC 604. It has been obsoleted by RFC 750 — refer to the newer document for the authoritative version. The canonical text is published by the RFC Editor.

What “Historic” means

A specification that has been superseded or is otherwise no longer recommended for use.

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Relationships to other RFCs
This RFC obsoletes
RFC 503 RFC 604
Obsoleted by
RFC 750
Other RFCs from 1977