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The Alliance for Telecommunications Industry Solutions, 08/01/2010
Publisher: ATIS
File Format: PDF
$42.00$85.00
Published:01/08/2010
Pages:17
File Size:1 file , 220 KB
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800-855 Number Assignment Guidelines
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Carrier Indentification Code (CIC) Assignment Guidelines
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Location Routing Number (LRN) Assignment Practices
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NPA Allocation Plan and Assignment Guidelines
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