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: 214

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
423-214 A Englewood TN KNVLTNMA31Z  6278 UNITED STATES CELLULAR - TN 474      
423-214 0 Englewood TN   6278 UNITED STATES CELLULAR - TN 474   2025-05-12   
423-214 1 Englewood TN   525E ONVOY, LLC - TN 474   2021-04-05   
423-214 2 Englewood TN   525E ONVOY, LLC - TN 474   2019-12-19   
423-214 3 Englewood TN   525E ONVOY, LLC - TN 474   2020-06-19   
423-214 4 Englewood TN   525E ONVOY, LLC - TN 474   2020-06-19   
423-214 5 Englewood TN   525E ONVOY, LLC - TN 474   2021-04-05   
423-214 6 Englewood TN   6278 UNITED STATES CELLULAR - TN 474   2025-05-12   
423-214 7 Englewood TN   6278 UNITED STATES CELLULAR - TN 474   2025-05-12   
423-214 8 Englewood TN   6278 UNITED STATES CELLULAR - TN 474   2025-05-12   
423-214 9 Englewood TN   6278 UNITED STATES CELLULAR - TN 474      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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