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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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   424   2011-08-14   
336-265 3 Greensboro NC   424   2013-12-01   
336-279 7 Greensboro NC   424   2016-02-19   
336-441 6 Summerfield NC   424   2011-09-10   
336-464 8 Winston-Salem NC   424   2010-04-20   
336-522 6 Greensboro NC   424   2019-04-08   
336-550 A Greensboro NC GNBONCEU30Z  424   2009-05-30   
336-550 4 Greensboro NC   424   2009-05-30   
336-814 3 Greensboro NC   424   2015-02-19   
336-823 A High Point NC HGPNNCXADS0  424   2009-05-30   
336-823 3 High Point NC   424   2009-05-30   
743-223 A Greensboro NC   424      
743-223 1 Greensboro NC   424   2017-03-19   

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

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