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  • ATIS 0300119(2019-10)

ATIS 0300119(2019-10)

Thousands-Block Number (NXX-X) Pooling Administration Guidelines (TBPAG)

The Alliance for Telecommunications Industry Solutions,

Publisher: ATIS

File Format: PDF

$131.00$262.46


This document specifies guidelines for the administration and assignment of Central Office (CO) Codes (NPA-NXX) and Thousands-Blocks (NPA-NXX-Xs) to Local Number Portability (LNP)-capable Service Provider (SPs) within geographic numbering plan areas (NPAs).

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