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: 275

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
423-275 A Chattanooga TN CHTGTNKF0MD  8356 US LEC OF TENNESSEE, INC. 472      
423-275 0 Chattanooga TN CHTGTNNSXMZ  624H ONVOY SPECTRUM, LLC 472   2022-09-16   
423-275 1 Chattanooga TN CHTGTNKF0MD  8356 US LEC OF TENNESSEE, INC. 472   2022-09-02   
423-275 2 Chattanooga TN CHTGTNNSXKY  525E ONVOY, LLC - TN 472   2022-12-11   
423-275 3 Chattanooga TN CHTGTNNSXKY  525E ONVOY, LLC - TN 472   2022-12-11   
423-275 4 Chattanooga TN CHTGTNNSXKY  525E ONVOY, LLC - TN 472   2022-12-11   
423-275 5 Chattanooga TN CHTGTNNSXKY  525E ONVOY, LLC - TN 472   2022-12-11   
423-275 6 Chattanooga TN CHTGTNNSX8X  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 472   2023-09-03   
423-275 7 Chattanooga TN CHTGTN12X5Y  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 472   2023-10-27   
423-275 8 Chattanooga TN CHTGTNNSXMZ  624H ONVOY SPECTRUM, LLC 472   2022-09-16   
423-275 9 Chattanooga TN CHTGTNNSXMZ  624H ONVOY SPECTRUM, LLC 472   2022-09-16   

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

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