RFC 440 · UNKNOWN · 1973
MON · 15 JUN 2026
Scheduled network software maintenance
Overview
RFC 440, “Scheduled network software maintenance”, is an Unknown document published in January 1973 by D.C. Walden. 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 440 is hosted at rfc-editor.org. Available in TXT,HTML.
Other RFCs from 1973
- RFC 439 PARRY encounters the DOCTOR
- RFC 441 Inter-Entity Communication - an experiment
- RFC 438 FTP server-server interaction
- RFC 442 Current flow-control scheme for IMPSYS
- RFC 437 Data Reconfiguration Service at UCSB
- RFC 443 Traffic statistics
- RFC 436 Announcement of RJS at UCSB
- RFC 435 Telnet issues