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: 940

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
423-940 A Dayton TN CHTGTN12X2Y  939H COMMIO, LLC 472      
423-940 0 Dayton TN CHTGTN12X2Y  939H COMMIO, LLC 472   2023-05-20   
423-940 8 Dayton TN CHTGTNGZ4MD  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 472   2024-10-05   
423-940 9 Dayton TN CHTGTNGZ4MD  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 472   2024-10-05   

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

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