Your shopping cart is empty!
PDF Preview
The Alliance for Telecommunications Industry Solutions, 09/01/2018
Publisher: ATIS
File Format: PDF
$575.00$1,150.00
Published:01/09/2018
File Size:1 file , 13 MB
International Inbound NPA Assignment Guidelines
$108.00 $216.38
Thousands-Block Number (NXX-X) Pooling Administration Guidelines (TBPAG)
$120.00 $241.78
CENTRAL OFFICE CODE (NXX) ASSIGNMENT GUIDELINES (COCAG)
$124.00 $248.79
800-855 Number Assignment Guidelines
$127.00 $255.54