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Numeric Provider Alias (NPA)

Document Type Expired Internet-Draft (individual)
Expired & archived
Author Cullen Fluffy Jennings
Last updated 2010-07-05
RFC stream (None)
Intended RFC status (None)
Stream Stream state (No stream defined)
Consensus boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Expired
Telechat date (None)
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


This draft proposes a modification to draft-lawrence-dispatch-sipforum-provider-alias (PAN). The PAN draft proposes a mechanism for a phone to take a short numeric identifier that identifies a phone service provider and look it up in DNS to find the address of the configuration server for that service provider. The problem with PAN is that it requires a specific organization,, to become a registrar for the PAN. This will add signifiant cost to obtaining them as the expected quantity of PAN is low. This draft proposes a minor modification to the PAN draft. Instead of using the sipforum as a new registrar, why not just use the registrars that already exist for DNS names. This ensure a long term stable unique allocation of PAN with the advantages of not having the IETF allocating a monopoly to one particular organization.


Cullen Fluffy Jennings

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)