Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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OCN: 721G COLORADO VALLEY COMMUNICATIONS, INC. - TX

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

Sponsored by: FiberConX Communications Ltd.

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