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The Alliance for Telecommunications Industry Solutions, 07/01/1993
Publisher: ATIS
File Format: PDF
$142.00$285.08
Published:01/07/1993
Pages:54
Vertical Service Code Assignment Guidelines
$109.00 $218.95
North American Numbering Plan Numbering Resource Utilization/Forecast Reporting (NRUF) Guidelines
$106.00 $212.56
Location Routing Number (LRN) Assignment Practices
$101.00 $203.49
NPA Code Relief Planning and Notification Guidelines
$118.00 $236.21