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.

OCN: 361F NORTH STATE COMMUNICATIONS ADVANCED SVCS, LLC-NC

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
336-256 9 Greensboro NC HGPNNCXADS0  424   2011-08-14   
336-265 3 Greensboro NC GNBONCEU30Z  424   2013-12-01   
336-279 7 Greensboro NC HGPNNCXADS0  424   2016-02-19   
336-441 6 Summerfield NC HGPNNCXADS0  424   2011-09-10   
336-464 8 Winston-Salem NC GNBONCEU30Z  424   2010-04-20   
336-522 6 Greensboro NC GNBONCEU30Z  424   2019-04-08   
336-550 A Greensboro NC GNBONCEU30Z  424      
336-550 4 Greensboro NC GNBONCEU30Z  424   2009-05-30   
336-814 3 Greensboro NC GNBONCEU30Z  424   2015-02-19   
336-823 A High Point NC HGPNNCXADS0  424      
336-823 3 High Point NC HGPNNCXADS0  424   2009-05-30   
743-223 A Greensboro NC GNBONCEU30Z  424      
743-223 1 Greensboro NC GNBONCEU30Z  424   2017-03-19   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.