NANPA : North American Numbering Plan Administration

What's New

5/4: April 2009 FG B and FG D CIC Activity Report

4/28: Planning Letter 389 - Alabama NPA 938 to Overlay NPA 256

4/23: April 2009 NPA and NANP Exhaust Analysis

4/15: NPA Relief Activity Status Report (xls)

4/15: CO Code Activity Status Report

4/15: NPA Relief Planning Triggers Report (pdf)

4/14: Planning Letter 388 - Connecticut, NPA 475 to Overlay NPA 203; NPA 860 10-Digit Dialing

4/14: Planning Letter 387R1 - Replaces PL-387 - Dominican Republic, NPA 849 to Overlay NPAs 809 and 829

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NANPA: North American Numbering Plan Administration
This site provides information about the North American Numbering Plan (NANP) and its administration. The NANP is the numbering plan for the Public Switched Telephone Network for Canada, the US and its territories, and the Caribbean.

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NANPA Web Guide

Can't find what you are looking for? NANPA.com is a wealth of information... and to first-time visitors, may seem overwhelming. To help you find the information you need, please read the NANPA Web Guide.