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: 393

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
423-393 A Bulls Gap TN MRTWTN280MD  704C CHARTER FIBERLINK-TENNESSEE, LLC - TN 474      
423-393 1 Bulls Gap TN MRTWTN280MD  704C CHARTER FIBERLINK-TENNESSEE, LLC - TN 474   2005-05-23   
423-393 2 Bulls Gap TN KNVLTNMANMD  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474   2008-05-20   
423-393 3 Bulls Gap TN KNVLTNMA56Z  124F BANDWIDTH.COM CLEC, LLC - TN 474   2010-03-04   
423-393 4 Bulls Gap TN KNVLTNMAYHX  318J COMCAST IP PHONE, LLC 474   2008-11-21   
423-393 5 Bulls Gap TN KNVLTNMA84Z  516C AT&T CORP. 474   2011-11-01   
423-393 6 Bulls Gap TN KNVLTNMA56Z  124F BANDWIDTH.COM CLEC, LLC - TN 474   2021-12-09   
423-393 7 Bulls Gap TN KNVLTNMA56Z  124F BANDWIDTH.COM CLEC, LLC - TN 474   2012-05-31   
423-393 8 Bulls Gap TN KNVLTNMA56Z  124F BANDWIDTH.COM CLEC, LLC - TN 474   2015-06-14   
423-393 9 Bulls Gap TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474   2016-06-09   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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