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: 674

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
423-674 A Dayton TN CHTGTNNSXKY  525E ONVOY, LLC - TN 472      
423-674 1 Dayton TN CHTGTNNSXMZ  624H ONVOY SPECTRUM, LLC 472   2023-06-17   
423-674 2 Dayton TN CHTGTNNSXKY  525E ONVOY, LLC - TN 472   2022-09-29   
423-674 3 Dayton TN CHTGTNNSXKY  525E ONVOY, LLC - TN 472   2022-09-29   
423-674 4 Dayton TN CHTGTNNSXKY  525E ONVOY, LLC - TN 472   2021-06-14   
423-674 5 Dayton TN CHTGTNNSXKY  525E ONVOY, LLC - TN 472   2021-06-14   
423-674 8 Dayton TN CHTGTNNSXKY  525E ONVOY, LLC - TN 472   2023-09-09   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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