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: 556

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
423-556 A Soddy Daisy TN CHTGTNNSXFY  124F BANDWIDTH.COM CLEC, LLC - TN 472      
423-556 0 Soddy Daisy TN   124F BANDWIDTH.COM CLEC, LLC - TN 472   2018-10-29   
423-556 1 Soddy Daisy TN   525E ONVOY, LLC - TN 472   2019-06-23   
423-556 2 Soddy Daisy TN   525E ONVOY, LLC - TN 472   2019-06-23   
423-556 3 Soddy Daisy TN   525E ONVOY, LLC - TN 472   2019-10-13   
423-556 4 Soddy Daisy TN   525E ONVOY, LLC - TN 472   2019-10-13   
423-556 5 Soddy Daisy TN   4645 ELECTRIC POWER BOARD OF CHATTANOOGA 472   2020-02-27   
423-556 6 Soddy Daisy TN   525E ONVOY, LLC - TN 472   2020-03-28   
423-556 7 Soddy Daisy TN   525E ONVOY, LLC - TN 472   2020-03-28   
423-556 8 Soddy Daisy TN   525E ONVOY, LLC - TN 472   2019-04-12   
423-556 9 Soddy Daisy TN   525E ONVOY, LLC - TN 472   2019-04-12   

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

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