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Document Details
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| 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 |
