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The Alliance for Telecommunications Industry Solutions, 04/03/2014
Publisher: ATIS
File Format: PDF
$145.00$290.31
Published:03/04/2014
Pages:12
International Inbound NPA (INT/NPA/NXX) Assignment Guidelines
$130.00 $261.56
Metrics Characterizing Packet-Based Network Synchronization
$122.00 $244.37
NPA Code Relief Planning and Notification Guidelines
$131.00 $263.85
NPA Allocation Plan and Assignment Guidelines
$139.00 $278.08