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.

NPA: 336 [Rate centres in NPA 336] [Dial plan for NPA 336]

NXX: 303

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
336-303 A Greensboro NC GNBONCCKW30  4809 CENTURYLINK COMMUNICATIONS LLC - NC 424      
336-303 0 Greensboro NC GNBONCEU27Z  998E BANDWIDTH.COM CLEC, LLC - NC 424   2008-11-22   
336-303 1 Greensboro NC GNBONCEU27Z  998E BANDWIDTH.COM CLEC, LLC - NC 424   2008-11-22   
336-303 2 Greensboro NC GNBONCEU38Z  8645 SUNCOM DBA T-MOBILE USA 424   2007-09-27   
336-303 3 Greensboro NC GNBONCCKW30  4809 CENTURYLINK COMMUNICATIONS LLC - NC 424      
336-303 4 Greensboro NC GNBONCCKX9X  3235 LEVEL 3 COMMUNICATIONS, LLC - NC 424   2015-07-12   
336-303 5 Greensboro NC GNBONCEU38Z  8645 SUNCOM DBA T-MOBILE USA 424   2007-09-27   
336-303 6 Greensboro NC GNBONCEU38Z  8645 SUNCOM DBA T-MOBILE USA 424   2007-09-27   
336-303 7 Greensboro NC GNBONCCKW30  4809 CENTURYLINK COMMUNICATIONS LLC - NC 424      
336-303 8 Greensboro NC GNBONCEU27Z  998E BANDWIDTH.COM CLEC, LLC - NC 424   2008-11-22   
336-303 9 Greensboro NC GNBONCEU38Z  8645 SUNCOM DBA T-MOBILE USA 424   2007-09-27   

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.