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The Alliance for Telecommunications Industry Solutions, 01/01/2016
Publisher: ATIS
File Format: PDF
$125.00$250.16
Published:01/01/2016
Unified Ordering Model - Access Service Request (UOM-ASR) Volume III - Design (ASOG) Version 15
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Unified Ordering Model - Access Service Request (UOM-ASR) Volume II Analysis (ASOG) Version 15
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555 NXX Assignment Guidelines
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International Inbound NPA Assignment Guidelines
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