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: 671

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
423-671 A Chattanooga TN CHTGTNNSXSZ  515J IP HORIZON LLC 472      
423-671 1 Chattanooga TN   515J IP HORIZON LLC 472   2020-11-20   
423-671 6 Chattanooga TN CHTGTNGZ4MD  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 472   2021-09-19   
423-671 7 Chattanooga TN CHTGTNNSX8X  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 472   2022-09-23   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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