Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 423 [Rate centres in NPA 423] [Dial plan for NPA 423]

NXX: 719

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
423-719 A Chattanooga TN CHTGTNNSXYZ  478J NUSO, LLC 472      
423-719 0 Chattanooga TN CHTGTNNSXKY  525E ONVOY, LLC - TN 472      
423-719 1 Chattanooga TN CHTGTNNSXFY  124F BANDWIDTH.COM CLEC, LLC - TN 472      
423-719 2 Chattanooga TN CHTGTNNSXYZ  478J NUSO, LLC 472      
423-719 3 Chattanooga TN CHTGTNNSXKY  525E ONVOY, LLC - TN 472      
423-719 4 Chattanooga TN CHTGTNNSXKY  525E ONVOY, LLC - TN 472      
423-719 5 Chattanooga TN CHTGTNNSXKY  525E ONVOY, LLC - TN 472      
423-719 6 Chattanooga TN CHTGTNNSXKY  525E ONVOY, LLC - TN 472      
423-719 7 Chattanooga TN CHTGTNNSXKY  525E ONVOY, LLC - TN 472      
423-719 8 Chattanooga TN CHTGTNNSXFY  124F BANDWIDTH.COM CLEC, LLC - TN 472      
423-719 9 Chattanooga TN CHTGTNOXEMD  7473 POWERTEL ATLANTA LICENSES, INC. 472      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.