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The Alliance for Telecommunications Industry Solutions, 08/01/2010
Publisher: ATIS
File Format: PDF
$143.00$287.40
Published:01/08/2010
Pages:31
NPA Code Relief Planning and Notification Guidelines
$116.00 $232.38
Carrier Identification Code (CIC) Assignment Guidelines
$17.00 $35.00
9YY NXX Code Assignment Guidelines
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Thousands-Block Number (NXX-X) Pooling Administration Guidelines
$114.00 $228.87