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: JHCYTNXCX2Y

<< 1 2 3 4 5 6 >>

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
423-343 6 Kingsport TN 5562 METROPCS, INC. 956   2007-05-08   
423-354 4 Blountville TN 5562 METROPCS, INC. 956   2016-05-07   
423-354 6 Blountville TN 5562 METROPCS, INC. 956   2017-03-13   
423-354 8 Blountville TN 5562 METROPCS, INC. 956   2017-08-06   
423-383 A Bristol TN 8645 SUNCOM DBA T-MOBILE USA 956      
423-384 A Fall Branch TN 8645 SUNCOM DBA T-MOBILE USA 956      
423-388 A Erwin TN 8645 SUNCOM DBA T-MOBILE USA 956      
423-388 0 Erwin TN 8645 SUNCOM DBA T-MOBILE USA 956      
423-398 A Kingsport TN 5562 METROPCS, INC. 956      
423-408 0 Kingsport TN 5562 METROPCS, INC. 956   2010-03-31   
423-429 9 Kingsport TN 5562 METROPCS, INC. 956   2011-01-28   
423-433 8 Johnson City TN 8645 SUNCOM DBA T-MOBILE USA 956   2007-11-28   
423-446 0 Fall Branch TN 8645 SUNCOM DBA T-MOBILE USA 956   2022-08-26   
423-446 4 Fall Branch TN 8645 SUNCOM DBA T-MOBILE USA 956   2022-01-19   
423-446 6 Fall Branch TN 8645 SUNCOM DBA T-MOBILE USA 956   2022-01-19   
423-460 2 Mountain City TN 8645 SUNCOM DBA T-MOBILE USA 956   2022-10-03   
423-482 3 Blountville TN 5562 METROPCS, INC. 956   2018-03-12   
423-482 5 Blountville TN 5562 METROPCS, INC. 956   2019-01-19   
423-518 A Elizabethton TN 8645 SUNCOM DBA T-MOBILE USA 956      
423-518 9 Elizabethton TN 8645 SUNCOM DBA T-MOBILE USA 956   2012-07-23   
423-530 A Kingsport TN 5562 METROPCS, INC. 956      
423-530 8 Kingsport TN 5562 METROPCS, INC. 956   2016-05-07   
423-557 A Johnson City TN 8645 SUNCOM DBA T-MOBILE USA 956      
423-557 0 Johnson City TN 8645 SUNCOM DBA T-MOBILE USA 956   2006-02-27   
423-557 1 Johnson City TN 8645 SUNCOM DBA T-MOBILE USA 956   2007-03-22   
423-557 9 Johnson City TN 8645 SUNCOM DBA T-MOBILE USA 956   2004-11-26   
423-579 7 Kingsport TN 8645 SUNCOM DBA T-MOBILE USA 956   2011-01-28   
423-631 6 Johnson City TN 8645 SUNCOM DBA T-MOBILE USA 956   2011-05-18   
423-631 7 Johnson City TN 8645 SUNCOM DBA T-MOBILE USA 956   2011-05-18   
423-631 8 Johnson City TN 8645 SUNCOM DBA T-MOBILE USA 956   2011-05-18   
423-631 9 Johnson City TN 8645 SUNCOM DBA T-MOBILE USA 956   2011-05-18   
423-646 A Bristol TN 8645 SUNCOM DBA T-MOBILE USA 956      
423-646 0 Bristol TN 8645 SUNCOM DBA T-MOBILE USA 956   2009-04-13   
423-646 1 Bristol TN 8645 SUNCOM DBA T-MOBILE USA 956      
423-646 2 Bristol TN 8645 SUNCOM DBA T-MOBILE USA 956      
423-646 3 Bristol TN 8645 SUNCOM DBA T-MOBILE USA 956      
423-646 4 Bristol TN 8645 SUNCOM DBA T-MOBILE USA 956      
423-646 5 Bristol TN 8645 SUNCOM DBA T-MOBILE USA 956      
423-646 6 Bristol TN 8645 SUNCOM DBA T-MOBILE USA 956      
423-646 7 Bristol TN 8645 SUNCOM DBA T-MOBILE USA 956      
423-646 8 Bristol TN 8645 SUNCOM DBA T-MOBILE USA 956      
423-646 9 Bristol TN 8645 SUNCOM DBA T-MOBILE USA 956      
423-647 A Butler TN 8645 SUNCOM DBA T-MOBILE USA 956      
423-647 0 Butler TN 8645 SUNCOM DBA T-MOBILE USA 956   2009-10-02   
423-647 1 Butler TN 8645 SUNCOM DBA T-MOBILE USA 956      
423-647 2 Butler TN 8645 SUNCOM DBA T-MOBILE USA 956      
423-647 3 Butler TN 8645 SUNCOM DBA T-MOBILE USA 956      
423-647 4 Butler TN 8645 SUNCOM DBA T-MOBILE USA 956      
423-647 5 Butler TN 8645 SUNCOM DBA T-MOBILE USA 956      
423-647 6 Butler TN 8645 SUNCOM DBA T-MOBILE USA 956      

<< 1 2 3 4 5 6 >>

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.