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.
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NPA: 423 [Rate centres in NPA 423] [Dial plan for NPA 423]

NXX: 676

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
423-676 A Johnson City TN JHCYTNXCX2Y  8645 SUNCOM DBA T-MOBILE USA 956      
423-676 0 Johnson City TN JHCYTNXCX2Y  8645 SUNCOM DBA T-MOBILE USA 956   2009-03-26   
423-676 1 Johnson City TN JHCYTNXCX2Y  8645 SUNCOM DBA T-MOBILE USA 956      
423-676 2 Johnson City TN JHCYTNXCX2Y  8645 SUNCOM DBA T-MOBILE USA 956      
423-676 3 Johnson City TN JHCYTNXCX2Y  8645 SUNCOM DBA T-MOBILE USA 956      
423-676 4 Johnson City TN JHCYTNXCX2Y  8645 SUNCOM DBA T-MOBILE USA 956      
423-676 5 Johnson City TN JHCYTNXCX2Y  8645 SUNCOM DBA T-MOBILE USA 956      
423-676 6 Johnson City TN JHCYTNXCX2Y  8645 SUNCOM DBA T-MOBILE USA 956      
423-676 7 Johnson City TN JHCYTNXCX2Y  8645 SUNCOM DBA T-MOBILE USA 956      
423-676 8 Johnson City TN JHCYTNXCX2Y  8645 SUNCOM DBA T-MOBILE USA 956      
423-676 9 Johnson City TN JHCYTNXCX2Y  8645 SUNCOM DBA T-MOBILE USA 956      

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

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