Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Switch: GNBPNCDNDS1

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
336-464 3 Winston-Salem NC 7973 LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 424      
336-464 4 Winston-Salem NC 7973 LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 424      
336-464 9 Winston-Salem NC 7973 LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 424      
336-497 2 Kernersville NC 7973 LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 424   2011-04-18   
336-554 8 Greensboro NC 7973 LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 424   2013-09-13   
336-615 8 Greensboro NC 7973 LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 424   2011-08-17   
336-617 A Greensboro NC 7973 LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 424      
336-617 2 Greensboro NC 7973 LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 424   2004-08-25   
336-678 A Greensboro NC 7973 LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 424      
336-778 7 Winston-Salem NC 7973 LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 424   2007-02-11   
336-814 0 Greensboro NC 7973 LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 424   2014-07-28   
336-814 4 Greensboro NC 7973 LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 424   2014-10-14   
336-867 2 Lexington NC 7973 LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 424   2016-07-02   
336-868 A Greensboro NC 7973 LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 424      
336-875 3 High Point NC 7973 LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 424   2014-03-19   
336-875 7 High Point NC 7973 LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 424   2013-12-13   
336-970 5 Winston-Salem NC 7973 LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 424   2006-11-09   
336-970 6 Winston-Salem NC 7973 LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 424   2006-11-09   

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Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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