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
336-501 A Greensboro NC ASBONCCVDS0  424      
336-501 9 Greensboro NC ASBONCCVDS0  424   2006-09-18   
336-610 A Asheboro NC ASBONCCVDS0  424      
910-468 A Troy NC ASBONCCVDS0  424      
910-559 A Biscoe NC ASBONCCVDS0  424      
910-657 A West End NC ASBONCCVDS0  424      

Last updated: Tue, 04 May 2021 15:04:27 UTC

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