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: 7973 LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
336-201 A Winston-Salem NC GNBPNCDNDS1  424      
336-201 0 Winston-Salem NC GNBPNCDNDS1  424      
336-201 4 Winston-Salem NC GNBPNCDNDS1  424      
336-201 5 Winston-Salem NC GNBPNCDNDS1  424      
336-201 9 Winston-Salem NC GNBPNCDNDS1  424      
336-217 A Greensboro NC GNBPNCDNDS1  424      
336-231 A Winston-Salem NC GNBPNCDNDS1  424      
336-231 0 Winston-Salem NC GNBPNCDNDS1  424      
336-231 5 Winston-Salem NC GNBPNCDNDS1  424   2005-09-12   
336-231 6 Winston-Salem NC GNBPNCDNDS1  424      
336-231 8 Winston-Salem NC GNBPNCDNDS1  424      
336-232 A Greensboro NC GNBPNCDNDS1  424      
336-232 0 Greensboro NC GNBPNCDNDS1  424      
336-232 1 Greensboro NC GNBPNCDNDS1  424      
336-232 3 Greensboro NC GNBPNCDNDS1  424   2005-03-21   
336-232 4 Greensboro NC GNBPNCDNDS1  424      
336-232 5 Greensboro NC GNBPNCDNDS1  424      
336-232 6 Greensboro NC GNBPNCDNDS1  424   2005-03-21   
336-232 7 Greensboro NC GNBPNCDNDS1  424   2004-07-10   
336-232 9 Greensboro NC GNBPNCDNDS1  424      
336-289 A High Point NC GNBPNCDNDS1  424      
336-289 2 High Point NC GNBPNCDNDS1  424   2004-05-24   
336-313 4 Thomasville NC GNBPNCDNDS1  424   2005-05-13   
336-376 4 Saxapahaw NC GNBPNCDNDS1  424   2003-03-01   
336-389 3 Greensboro NC GNBPNCDNDS1  424   2006-09-08   
336-389 4 Greensboro NC GNBPNCDNDS1  424   2006-09-08   
336-389 5 Greensboro NC GNBPNCDNDS1  424   2006-09-08   
336-389 6 Greensboro NC GNBPNCDNDS1  424   2008-05-11   
336-397 5 Winston-Salem NC GNBPNCDNDS1  424   2006-03-25   
336-397 6 Winston-Salem NC GNBPNCDNDS1  424   2006-03-25   
336-417 A Burlington NC GNBPNCDNDS1  424      
336-417 0 Burlington NC GNBPNCDNDS1  424      
336-417 5 Burlington NC GNBPNCDNDS1  424      
336-417 8 Burlington NC GNBPNCDNDS1  424      
336-423 A Kernersville NC GNBPNCDNDS1  424      
336-423 0 Kernersville NC GNBPNCDNDS1  424      
336-423 5 Kernersville NC GNBPNCDNDS1  424      
336-447 2 Gibsonville NC GNBPNCDNDS1  424   2006-07-21   
336-458 A Greensboro NC GNBPNCDNDS1  424      
336-458 0 Greensboro NC GNBPNCDNDS1  424      
336-458 1 Greensboro NC GNBPNCDNDS1  424      
336-458 2 Greensboro NC GNBPNCDNDS1  424      
336-458 3 Greensboro NC GNBPNCDNDS1  424      
336-458 4 Greensboro NC GNBPNCDNDS1  424      
336-458 5 Greensboro NC GNBPNCDNDS1  424      
336-458 9 Greensboro NC GNBPNCDNDS1  424      
336-464 A Winston-Salem NC GNBPNCDNDS1  424      
336-464 0 Winston-Salem NC GNBPNCDNDS1  424      
336-464 1 Winston-Salem NC GNBPNCDNDS1  424      
336-464 2 Winston-Salem NC GNBPNCDNDS1  424      
336-464 3 Winston-Salem NC GNBPNCDNDS1  424      
336-464 4 Winston-Salem NC GNBPNCDNDS1  424      
336-464 9 Winston-Salem NC GNBPNCDNDS1  424      
336-497 2 Kernersville NC GNBPNCDNDS1  424   2011-04-18   
336-554 8 Greensboro NC GNBPNCDNDS1  424   2013-09-13   
336-615 8 Greensboro NC GNBPNCDNDS1  424   2011-08-17   
336-617 A Greensboro NC GNBPNCDNDS1  424      
336-617 2 Greensboro NC GNBPNCDNDS1  424   2004-08-25   
336-678 A Greensboro NC GNBPNCDNDS1  424      
336-778 7 Winston-Salem NC GNBPNCDNDS1  424   2007-02-11   
336-814 0 Greensboro NC GNBPNCDNDS1  424   2014-07-28   
336-814 4 Greensboro NC GNBPNCDNDS1  424   2014-10-14   
336-867 2 Lexington NC GNBPNCDNDS1  424   2016-07-02   
336-868 A Greensboro NC GNBPNCDNDS1  424      
336-868 0 Greensboro NC   424   2004-12-09   
336-868 1 Greensboro NC   424   2004-12-09   
336-868 2 Greensboro NC   424   2004-12-09   
336-868 3 Greensboro NC   424   2004-12-09   
336-868 4 Greensboro NC   424   2004-12-09   
336-868 5 Greensboro NC   424   2004-12-09   
336-868 6 Greensboro NC   424   2004-12-09   
336-868 7 Greensboro NC   424   2004-12-09   
336-868 8 Greensboro NC   424   2004-12-09   
336-868 9 Greensboro NC   424   2004-12-09   
336-875 3 High Point NC GNBPNCDNDS1  424   2014-03-19   
336-875 7 High Point NC GNBPNCDNDS1  424   2013-12-13   
336-970 5 Winston-Salem NC GNBPNCDNDS1  424   2006-11-09   
336-970 6 Winston-Salem NC GNBPNCDNDS1  424   2006-11-09   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.