Links
Stuff Software, maker of 'C.O. Finder' NPA lookup software
North American Numbering Plan Administration - Defines all the area codes and prefixes that exist and will be defined in America's phone system.
The Traffic Routing Administration - alerts telephone companies to changes in NPA/NXXs via the NNAG list.
Copyright 1997, Primeris, Inc.
Questions or comments? webmaster@primeris.com