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The Alliance for Telecommunications Industry Solutions, 06/01/1997
Publisher: ATIS
File Format: PDF
$111.00$223.17
Published:01/06/1997
Thousands-Block Number (NXX-X) Pooling Administration Guidelines
$134.00 $269.14
Carrier Identification Code (CIC) Assignment Guidelines
$117.00 $234.07
Central Office Code (NXX) Assignment Guidelines (COCAG)
$100.00 $200.94
EDI Telecommunications Billing Guidelines Issue 9 Revision 7
$108.00 $216.72