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The Alliance for Telecommunications Industry Solutions, 06/12/2015
Publisher: ATIS
File Format: PDF
$127.00$255.74
Published:12/06/2015
Pages:19
NPA Code Relief Planning and Notification Guidelines
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Carrier Identification Code (CIC) Assignment Guidelines
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9YY NXX Code Assignment Guidelines
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Thousands-Block Number (NXX-X) Pooling Administration Guidelines
$114.00 $228.87