RFC 4694 · PROPOSED STANDARD · 2006
SUN · 14 JUN 2026
Number Portability Parameters for the "tel" URI
Overview
RFC 4694, “Number Portability Parameters for the "tel" URI”, is a Proposed Standard document published in October 2006 by J. Yu. The canonical text is published by the RFC Editor.
Abstract
This document defines five parameters in the "tel" Uniform Resource Identifier (URI) to carry the number portability (NP)-related information. Those parameters can be passed to the next-hop network node after an NP database dip has been performed. [STANDARDS-TRACK]
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 4694 is hosted at rfc-editor.org. Available in TXT,HTML.
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