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.

Switch: CHTGTNNSX0X

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
423-443 A Chattanooga TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 472      
423-454 A Decatur TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 472   2004-12-20   
423-665 A Charleston TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 472   2004-12-20   
423-761 A Copper Basin TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 472   2006-09-22   
423-799 A Spring City TN 4806 LEVEL 3 COMMUNICATIONS, LLC - TN 472   2004-12-20   
706-956 A Rossville GA 6116 LEVEL 3 COMMUNICATIONS, LLC - GA 472      

Last updated: Sun, 31 May 2020 11:59:01 UTC

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