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The Alliance for Telecommunications Industry Solutions, 01/01/1995
Publisher: ATIS
File Format: PDF
$124.00$249.11
Published:01/01/1995
800-855 Number Assignment Guidelines
$107.00 $214.95
555 NXX Assignment Guidelines
$135.00 $270.50
Guidelines for the Administration of Telephone Numbers
$149.00 $299.30
NPA Allocation Plan and Assignment Guidelines
$107.00 $215.85