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: 999

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
423-999 A Athens TN KNVLTNMA48Z  7476 POWERTEL NASHVILLE LICENSES, INC. 474      
423-999 0 Athens TN KNVLTNMA48Z  7476 POWERTEL NASHVILLE LICENSES, INC. 474   2011-05-14   
423-999 1 Athens TN KNVLTNMA48Z  7476 POWERTEL NASHVILLE LICENSES, INC. 474   2011-05-27   
423-999 2 Athens TN KNVLTNMA48Z  7476 POWERTEL NASHVILLE LICENSES, INC. 474   2011-05-27   
423-999 3 Athens TN   145J TERRA NOVA TELECOM INC. 474   2024-02-05   
423-999 5 Athens TN KNVLTNMA48Z  7476 POWERTEL NASHVILLE LICENSES, INC. 474   2013-03-21   
423-999 6 Athens TN KNVLTNMA48Z  7476 POWERTEL NASHVILLE LICENSES, INC. 474   2013-05-12   
423-999 7 Athens TN KNVLTNMA48Z  7476 POWERTEL NASHVILLE LICENSES, INC. 474   2013-09-27   
423-999 8 Athens TN KNVLTNMA48Z  7476 POWERTEL NASHVILLE LICENSES, INC. 474   2013-10-28   
423-999 9 Athens TN KNVLTNMA48Z  7476 POWERTEL NASHVILLE LICENSES, INC. 474   2011-05-14   

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.