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The Alliance for Telecommunications Industry Solutions, 11/01/2008
Publisher: ATIS
File Format: PDF
$107.00$215.01
Published:01/11/2008
Structure and Representation of Network Channel (NC) and Network Channel Interface (NCI) Codes for Information Exchange
$122.00 $244.82
$133.00 $266.15
NPA Code Relief Planning and Notification Guidelines
$105.00 $210.23
CENTRAL OFFICE CODE (NXX) ASSIGNMENT GUIDELINES (COCAG)
$108.00 $217.64