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Document Name:  555 NXX Line Number Reference Document
Document Date:  January, 2017
Document Number:  ATIS-0300115
Document Version: 
Committee:  INC
Collaborating Forum(s): 
Document Type:  Standard
Abstract:  The purpose of this document is to capture the history of the 555 NXX line numbers, including the uses prior to the creation of the 555 NXX Assignment Guidelines in 1994, to the sunset of the Guidelines in 2016. This document also addresses issues associated with implementation, a summary of assignment data, the Industry Numbering Committee’s (INC) 2016 agreement to sunset the 555 NXX Assignment Guidelines, and agreement that the future of 555 line numbers will be determined if a need for the resource is identified and agreed to by INC.
Formats Available:  Paper Copy: $35.00 - Add to Cart
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File Size: 
Number of Pages:  17
 
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