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: 407

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
423-407 A Spring City TN CHTGTNNSXGZ  204G TWIN LAKES COMMUNICATIONS, INC. - TN 472      
423-407 0 Spring City TN CHTGTNNSXJZ  073H TELNYX LLC 472   2021-01-23   
423-407 1 Spring City TN CHTGTNNSXGZ  204G TWIN LAKES COMMUNICATIONS, INC. - TN 472   2020-03-13   
423-407 2 Spring City TN CHTGTNNSXKY  525E ONVOY, LLC - TN 472   2021-07-11   
423-407 3 Spring City TN CHTGTNNSXKY  525E ONVOY, LLC - TN 472   2021-07-11   
423-407 4 Spring City TN CHTGTNNSXTZ  506J TWILIO INTERNATIONAL, INC. 472   2021-08-08   
423-407 5 Spring City TN CHTGTNNSXKY  525E ONVOY, LLC - TN 472   2021-10-24   
423-407 6 Spring City TN CHTGTNNSXFY  124F BANDWIDTH.COM CLEC, LLC - TN 472   2022-01-10   
423-407 7 Spring City TN CHTGTNNSXKY  525E ONVOY, LLC - TN 472   2021-03-15   
423-407 8 Spring City TN CHTITNCDDS0  4645 ELECTRIC POWER BOARD OF CHATTANOOGA 472   2020-03-14   
423-407 9 Spring City TN CHTGTNNSXMZ  624H ONVOY SPECTRUM, LLC 472   2023-06-17   

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

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