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: 675

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
423-675 A Jasper TN CHTGTNNSXKY  525E ONVOY, LLC - TN 472      
423-675 0 Jasper TN   939H COMMIO, LLC 472   2023-10-25   
423-675 1 Jasper TN   124F BANDWIDTH.COM CLEC, LLC - TN 472   2021-12-09   
423-675 2 Jasper TN   939H COMMIO, LLC 472   2023-09-28   
423-675 3 Jasper TN   525E ONVOY, LLC - TN 472   2021-07-11   
423-675 4 Jasper TN   525E ONVOY, LLC - TN 472   2021-07-11   
423-675 5 Jasper TN   939H COMMIO, LLC 472   2023-09-28   
423-675 7 Jasper TN   939H COMMIO, LLC 472   2023-09-28   
423-675 8 Jasper TN   624H ONVOY SPECTRUM, LLC 472   2023-06-17   
423-675 9 Jasper TN   939H COMMIO, LLC 472   2023-09-28   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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