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-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
336-846 A West Jefferson NC WJSNNCANRS1  424      
828-372 9 Blowing Rock NC   422   2016-07-09   
828-833 A Newland NC CHRLNCBOX9Y  422      
828-865 A Boone NC BOONNC990MD  422      
828-929 2 Lenoir NC   422   2016-03-21   

Last updated: Sun, 04 Apr 2021 19:28:27 UTC

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