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ATIS 0300119(2020-03)

Thousands-Block (NPA-NXX-X) & Central Office Code (NPA-NXX) Administration Guidelines (TBCOCAG)

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Publication date: 2020-03-01
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This document specifies guidelines for the administration and assignment of Central Office (CO) Codes (NPA-NXX) and Thousands-Blocks (NPA-NXX-Xs) to Local Number Portability (LNP)-capable Service Provider (SPs) within geographic numbering plan areas (NPAs).
Document identifier
ATIS 0300119(2020-03)
Title
Thousands-Block (NPA-NXX-X) & Central Office Code (NPA-NXX) Administration Guidelines (TBCOCAG)
ATIS Category
Industry Numbering Committee
Publication date
2020-03-01
Status
Effective
International Relationship
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Latest version
ATIS 0300119(2020-03)
Thousands-Block (NPA-NXX-X) & Central Office Code (NPA-NXX) Administration Guidelines (TBCOCAG)
Document identifier ATIS 0300119(2020-03)
Publication date 2020-03-01
Classification
Status Effective
*
History of version
ATIS 0300119(2020-03) * ATIS 0300119(2019-10) * ATIS 0300051(2019-05) * ATIS 0300066(2019-05) * ATIS 0300051(2019-04) * ATIS 0300066(2019-04) * ATIS 0300051 * ATIS 0300066 * ATIS 0300051 * ATIS 0300066 * ATIS 0300066 * ATIS 0300051 * ATIS 0300066 * ATIS 0300051 * ATIS 0300051 * ATIS 0300051 * ATIS 0300066 * ATIS 0300051 * ATIS 0300051 * ATIS 0300066 * ATIS 0300051 * ATIS 0300066 * ATIS 0300051 * ATIS 0300051 * ATIS 0300051 * ATIS 0300051 * ATIS 0300051 * ATIS 0300051 * ATIS 0300051 * ATIS 0300051 * ATIS 0300051 * ATIS 0300051 * ATIS 0300051 * ATIS 0300051 * ATIS 0300051 * ATIS 0300051 * ATIS 0300051 * ATIS 0300051 * ATIS 0300051 * ATIS 0300051 * ATIS 0300051
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