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: 980

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
423-980 A Chattanooga TN CHTGTNNSXKY  525E ONVOY, LLC - TN 472      
423-980 0 Chattanooga TN   525E ONVOY, LLC - TN 472   2021-05-30   
423-980 1 Chattanooga TN   939H COMMIO, LLC 472   2024-02-08   
423-980 2 Chattanooga TN   939H COMMIO, LLC 472   2024-02-08   
423-980 3 Chattanooga TN   939H COMMIO, LLC 472   2024-02-08   
423-980 4 Chattanooga TN   478J NUSO, LLC 472   2024-11-24   
423-980 7 Chattanooga TN   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 472   2021-07-17   
423-980 9 Chattanooga TN   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 472   2021-07-17   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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