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The Alliance for Telecommunications Industry Solutions, 07/01/2022
Publisher: ATIS
File Format: PDF
$125.00$251.58
Published:01/07/2022
File Size:1 file , 5.7 MB
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).
A Metric to Measure the Resiliency of the Undersea Cable Structure
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IPTV Consumer Domain Decide Configuration Metadata
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Central Office Code (NXX) Assignment Guidelines (COCAG)
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