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: KNVNTNEC5MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
423-289 5 Morristown TN 145J TERRA NOVA TELECOM INC. 474   2024-12-29   
423-307 1 Morristown TN 145J TERRA NOVA TELECOM INC. 474   2024-02-10   
423-465 8 Newport TN 145J TERRA NOVA TELECOM INC. 474   2024-12-29   
423-523 3 Bulls Gap TN 145J TERRA NOVA TELECOM INC. 474   2024-02-10   
423-537 9 Bulls Gap TN 145J TERRA NOVA TELECOM INC. 474   2024-10-12   
423-999 3 Athens TN 145J TERRA NOVA TELECOM INC. 474   2024-02-05   
606-777 8 Jellico KY 145J TERRA NOVA TELECOM INC. 474   2024-05-10   
828-822 8 Waterville NC 145J TERRA NOVA TELECOM INC. 474   2024-04-22   
865-263 0 Gatlinburg TN 145J TERRA NOVA TELECOM INC. 474   2024-08-28   
865-332 3 Knoxville TN 145J TERRA NOVA TELECOM INC. 474   2024-12-10   
865-630 8 Lake City TN 145J TERRA NOVA TELECOM INC. 474   2024-08-28   
865-813 3 Oak Ridge TN 145J TERRA NOVA TELECOM INC. 474   2024-09-12   
865-855 A Clinton TN 145J TERRA NOVA TELECOM INC. 474      
865-855 8 Clinton TN 145J TERRA NOVA TELECOM INC. 474   2024-02-14   
865-900 A Knoxville TN 145J TERRA NOVA TELECOM INC. 474      
865-993 6 Bean Station TN 145J TERRA NOVA TELECOM INC. 474   2024-04-23   

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

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