RFC 1439 · INFORMATIONAL · 1993

The Uniqueness of Unique Identifiers

Overview

RFC 1439, “The Uniqueness of Unique Identifiers”, is an Informational document published in March 1993 by C. Finseth. The canonical text is published by the RFC Editor.

Abstract

This RFC provides information that may be useful when selecting a method to use for assigning unique identifiers to people. This memo provides information for the Internet community. It does not specify an Internet standard.

Abstract as published in the RFC, via rfc-editor.org.

What “Informational” means

Published for the general information of the community. It does not define an IETF standard and carries no standards-track status.

Read this RFC

The canonical text of RFC 1439 is hosted at rfc-editor.org. Available in TXT,HTML.

Other RFCs from 1993

Who Is Online

In total there are 39 users online: 0 registered, 34 guests and 5 bots.

Most users ever online was 1,226 on 13 Jun 2026, 3:56 am.

Bots: AhrefsBot Applebot Bingbot Other Bot SemrushBot

Users active in the past 15 minutes. Total registered members: 354