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The Alliance for Telecommunications Industry Solutions, 12/01/2008
Publisher: ATIS
File Format: PDF
$127.00$255.86
Published:01/12/2008
IIF Requirements Guidelines
$42.00 $85.00
NPA Allocation Plan and Assignment Guidelines
$146.00 $293.55
Vertical Service Code Assignment Guidelines
$144.00 $288.92
Central Office Code (NXX) Assignment Guidelines (COCAG)
$132.00 $265.45