Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 423 [Rate centres in NPA 423] [Dial plan for NPA 423]

NXX: 992

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
423-992 A Bristol TN   145J TERRA NOVA TELECOM INC. 956   2025-10-09   
423-992 0 Bristol TN   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2026-04-25   
423-992 1 Bristol TN   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2026-04-25   
423-992 2 Bristol TN   145J TERRA NOVA TELECOM INC. 956   2025-10-09   
423-992 9 Bristol TN   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956   2026-04-25   

Last updated: Sat, 02 May 2026 12:20:53 UTC

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