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  • ATIS 0300048

ATIS 0300048

555 NXX Assignment Guidelines

The Alliance for Telecommunications Industry Solutions , 05/28/2010

Publisher: ATIS

File Format: PDF

$137.00$275.08


Standard By:The Alliance for Telecommunications Industry Solutions , 05/28/2010
Published:05/28/2010
Pages:24
This document specifies guidelines for the assignment of line numbers within the 555 NXX code. The intended use for 555 numbers for which these guidelines apply include the provisioning of information services but may include a broad range of existing and future services as well. These guidelines currently apply only to the assignment of 555 numbers in geographic NPAs.

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