ATIS 0300060

9YY NXX Code Assignment Guidelines

The Alliance for Telecommunications Industry Solutions, 08/01/2018

Publisher: ATIS

File Format: PDF

$138.00$276.26

Published:01/08/2018

This document specifies guidelines for the assignment of NXX codes within the 9YY Service Access Code (SAC) to carriers.

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

CENTRAL OFFICE CODE (NXX) ASSIGNMENT GUIDELINES (COCAG)

$124.00 $248.79