Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 336 [Rate centres in NPA 336] [Dial plan for NPA 336]

NXX: 231

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
336-231 A Winston-Salem NC GNBPNCDNDS0  7973 LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 424      
336-231 0 Winston-Salem NC GNBPNCDNDS0  7973 LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 424      
336-231 1 Winston-Salem NC GNBONCEU38Z  8645 SUNCOM DBA T-MOBILE USA 424   2006-01-01   
336-231 2 Winston-Salem NC GNBONCCKX5X  7835 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 424   2006-01-05   
336-231 3 Winston-Salem NC GNBONCCKX5X  7835 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 424   2005-12-27   
336-231 4 Winston-Salem NC GNBONCEU38Z  8645 SUNCOM DBA T-MOBILE USA 424   2006-03-02   
336-231 5 Winston-Salem NC GNBPNCDNDS0  7973 LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 424   2005-09-12   
336-231 6 Winston-Salem NC GNBPNCDNDS0  7973 LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 424      
336-231 7 Winston-Salem NC GNBONCEU38Z  8645 SUNCOM DBA T-MOBILE USA 424   2006-06-02   
336-231 8 Winston-Salem NC GNBPNCDNDS0  7973 LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 424      
336-231 9 Winston-Salem NC GNBONCEU38Z  8645 SUNCOM DBA T-MOBILE USA 424   2006-06-02   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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