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: 259

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
423-259 A New Tazewell TN KNVLTNMA31Z  6278 UNITED STATES CELLULAR - TN 474      
423-259 0 New Tazewell TN KNVLTNMA31Z  6278 UNITED STATES CELLULAR - TN 474      
423-259 1 New Tazewell TN KNVLTNMA31Z  6278 UNITED STATES CELLULAR - TN 474      
423-259 2 New Tazewell TN KNVLTNMANMD  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474   2010-07-06   
423-259 3 New Tazewell TN KNVLTNMA56Z  124F BANDWIDTH.COM CLEC, LLC - TN 474   2018-11-16   
423-259 4 New Tazewell TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474   2019-08-26   
423-259 5 New Tazewell TN KNVLTNMA56Z  124F BANDWIDTH.COM CLEC, LLC - TN 474   2018-04-16   
423-259 6 New Tazewell TN KNVLTNMA54Z  114F TELEPORT COMMUNICATIONS AMERICA, LLC - TN 474   2019-08-01   
423-259 8 New Tazewell TN KNVLTNMANMD  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474   2014-07-18   
423-259 9 New Tazewell TN KNVLTNMAY8X  624H ONVOY SPECTRUM, LLC 474   2023-06-17   

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

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