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: 455

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
423-455 A Jellico TN KNVLTNMANMD  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474      
423-455 0 Jellico TN KNVLTNMANMD  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474   2004-11-15   
423-455 2 Jellico TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474   2016-06-09   
423-455 3 Jellico TN KNVLTNMA84Z  516C AT&T CORP. 474   2012-11-19   
423-455 4 Jellico TN KNVLTNMA54Z  114F TELEPORT COMMUNICATIONS AMERICA, LLC - TN 474   2011-02-17   
423-455 5 Jellico TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474   2016-06-09   
423-455 6 Jellico TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474   2021-03-19   
423-455 8 Jellico TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474   2016-03-30   
423-455 9 Jellico TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474   2016-03-30   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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