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: 721

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
423-721 A Newport TN KNVLTNMA31Z  6278 UNITED STATES CELLULAR - TN 474      
423-721 0 Newport TN KNVLTNMA31Z  6278 UNITED STATES CELLULAR - TN 474      
423-721 1 Newport TN KNVLTNMA31Z  6278 UNITED STATES CELLULAR - TN 474      
423-721 2 Newport TN KNVLTNMA31Z  6278 UNITED STATES CELLULAR - TN 474      
423-721 3 Newport TN KNVLTNMA31Z  6278 UNITED STATES CELLULAR - TN 474      
423-721 4 Newport TN KNVLTNMA31Z  6278 UNITED STATES CELLULAR - TN 474      
423-721 5 Newport TN KNVLTNMA31Z  6278 UNITED STATES CELLULAR - TN 474      
423-721 6 Newport TN KNVLTNMA31Z  6278 UNITED STATES CELLULAR - TN 474      
423-721 7 Newport TN KNVLTNJHGT0  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 474   2008-12-19   
423-721 8 Newport TN KNVLTNIIAMD  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 474   2009-11-08   
423-721 9 Newport TN KNVLTNJHGT0  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 474   2009-05-08   

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

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