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.

OCN: 2757 CENTURYLINK COMMUNICATIONS LLC - TN

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
423-664 A Chattanooga TN CHTGTN78DS0  472      
423-664 0 Chattanooga TN CHTGTN78DS0  472      
423-664 1 Chattanooga TN CHTGTN78DS0  472      
423-664 4 Chattanooga TN CHTGTN78DS0  472      
423-664 5 Chattanooga TN CHTGTN78DS0  472      
423-664 9 Chattanooga TN CHTGTN78DS0  472      
423-693 A Chattanooga TN CHTGTN78DS0  472      
423-693 0 Chattanooga TN CHTGTN78DS0  472   2006-07-10   
423-709 9 Cleveland TN CHTGTN78DS0  472   2003-08-18   
423-834 A Chattanooga TN CHTGTN78DS0  472      
423-834 9 Chattanooga TN CHTGTN78DS0  472      

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.