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ATIS 0300051(2019-05)

Central Office Code (NXX) Assignment Guidelines (COCAG)

The Alliance for Telecommunications Industry Solutions, 05/01/2019

Publisher: ATIS

File Format: PDF

$145.00$290.93


Published:01/05/2019

On October 30, 2019, ATIS?0300051, Central Office Code (NXX) Assignment Guidelines (COCAG) and ATIS-0300066, Thousands-Block Number(NXX-X) Pooling Administration Guidelines (TBPAG) were superseded by a single document, ATIS-0300119, Thousands-Block (NPA-NXX-X) & Central Office Code (NPA-NXX) Administration Guidelines (TBCOCAG).

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