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The Alliance for Telecommunications Industry Solutions, 03/01/2008
Publisher: ATIS
File Format: PDF
$118.00$237.21
Published:01/03/2008
Unified Ordering Model - Access Service Request (UOM-ASR) Volume II Analysis (ASOG) Version 15
$121.00 $243.05
555 NXX Assignment Guidelines
$126.00 $253.61
International Inbound NPA Assignment Guidelines
$108.00 $216.38
Thousands-Block Number (NXX-X) Pooling Administration Guidelines (TBPAG)
$120.00 $241.78