RFC 404 · UNKNOWN · 1972
MON · 15 JUN 2026
Host Address Changes Involving Rand and ISI
Overview
RFC 404, “Host Address Changes Involving Rand and ISI”, is an Unknown document published in October 1972 by A.M. McKenzie. It has since been updated by RFC 405. The canonical text is published by the RFC Editor.
What “Unknown” means
The standards-track status of this early RFC was never formally classified.
Read this RFC
The canonical text of RFC 404 is hosted at rfc-editor.org. Available in TXT,HTML.
Relationships to other RFCs
Other RFCs from 1972