Document Details
|
Title |
ATIS-0300055(2022-07), NPA Allocation Plan and Assignment Guidelines |
Name |
(1MB) |
Description |
This document specifies guidelines for the assignment of Numbering Plan Area (NPA) codes. NPA codes are the first three digits of the 10-digit North American Numbering Plan (NANP) format (the format is made up of 10 digits in the form of NXX-NXX-XXXX). NPA codes have traditionally been used to identify distinct exclusive geographic areas, commonly referred to as area codes. |
Document State |
Publications (Published document) |
Group / Folder |
INC - Industry Numbering Committee / Publications |
Submitter |
By Anna Karditzas on Friday, 01 July 2022 07:47am |
Technical Contact |
None Selected |
Public URL |
https://access.atis.org/apps/group_public/document.php?document_id=66604&wg_abbrev=inc |