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ATIS 0300119(2019-10)

Original price was: $110.00.Current price is: $55.00.

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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ATIS 0300119(2019-10)
Original price was: $110.00.Current price is: $55.00.