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The Alliance for Telecommunications Industry Solutions, 09/01/2017
Publisher: ATIS
File Format: PDF
$132.00$264.51
Published:01/09/2017
Pages:146
NPA Allocation Plan and Assignment Guidelines
$107.00 $215.85
Carrier Indentification Code (CIC) Assignment Guidelines
$115.00 $231.59
CENTRAL OFFICE CODE (NXX) ASSIGNMENT GUIDELINES (COCAG)
$148.00 $297.41
North American Numbering Plan Numbering Resource Utilization/Forecast Reporting (NRUF) Guidelines
$110.00 $220.69