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: 441

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
423-441 A Cumberland Gap TN DAVLKYMAXAX  365C POWERTEL KENTUCKY LICENSES, INC. 466      
423-441 0 Cumberland Gap TN CRBNKYMA0MD  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 466   2008-10-10   
423-441 1 Cumberland Gap TN LXTNKYXAX2Z  525E ONVOY, LLC - TN 466   2021-03-15   
423-441 2 Cumberland Gap TN CRBNKYMA0MD  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 466   2009-05-08   
423-441 3 Cumberland Gap TN WNCHKYMAXTY  624H ONVOY SPECTRUM, LLC 466   2024-05-18   
423-441 4 Cumberland Gap TN LXTNKYXAX2Z  525E ONVOY, LLC - TN 466   2019-08-29   
423-441 5 Cumberland Gap TN WNCHKYMAXMY  516C AT&T CORP. 466   2012-12-22   
423-441 6 Cumberland Gap TN LXTNKYXAX2Z  525E ONVOY, LLC - TN 466   2021-07-11   
423-441 7 Cumberland Gap TN LXTNKYXAX2Z  525E ONVOY, LLC - TN 466   2021-07-11   
423-441 8 Cumberland Gap TN GRTWKYMAJMD  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 466   2014-08-22   
423-441 9 Cumberland Gap TN DAVLKYMAXAX  365C POWERTEL KENTUCKY LICENSES, INC. 466   2003-02-28   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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