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The Alliance for Telecommunications Industry Solutions, 05/01/2008
Publisher: ATIS
File Format: PDF
$140.00$281.94
Published:01/05/2008
Personal Communications Services (PCS) 5YY NXX Code Assignment guidelines
$118.00 $236.01
Guidelines for the Administration of Telephone Numbers
$109.00 $219.96
Metrics Characterizing Packet-Based Network Synchronization
$87.00 $175.00
International Inbound NPA (INT/NPA/NXX) Assignment Guidelines
$130.00 $261.56