RFC 3761 · PROPOSED STANDARD · 2004

The E.164 to Uniform Resource Identifiers Dynamic Delegation Discovery System Application

Overview

RFC 3761, “The E.164 to Uniform Resource Identifiers Dynamic Delegation Discovery System Application”, is a Proposed Standard document published in April 2004 by P. Faltstrom, M. Mealling. It obsoletes RFC 2916. It has been obsoleted by RFC 6116, RFC 6117 — refer to the newer document for the authoritative version. The canonical text is published by the RFC Editor.

Abstract

This document discusses the use of the Domain Name System (DNS) for storage of E.164 numbers. More specifically, how DNS can be used for identifying available services connected to one E.164 number. It specifically obsoletes RFC 2916 to bring it in line with the Dynamic Delegation Discovery System (DDDS) Application specification found in the document series specified in RFC 3401. It is very important to note that it is impossible to read and understand this document without reading the documents discussed in RFC 3401. [STANDARDS-TRACK]

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

What “Proposed Standard” means

An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.

Read this RFC

The canonical text of RFC 3761 is hosted at rfc-editor.org. Available in TXT,HTML.

Relationships to other RFCs
This RFC obsoletes
RFC 2916
Obsoleted by
RFC 6116 RFC 6117
Other RFCs from 2004

Who Is Online

In total there are 145 users online: 0 registered, 140 guests and 5 bots.

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

Bots: AhrefsBot Applebot Facebook Other Bot SemrushBot

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