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: 422

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
336-422 A Winston-Salem NC GNBONCEU63Z  8645 SUNCOM DBA T-MOBILE USA 424      
336-422 0 Winston-Salem NC GNBONCEU27Z  998E BANDWIDTH.COM CLEC, LLC - NC 424      
336-422 1 Winston-Salem NC GNBONCEU27Z  998E BANDWIDTH.COM CLEC, LLC - NC 424      
336-422 2 Winston-Salem NC GNBONCEU63Z  8645 SUNCOM DBA T-MOBILE USA 424      
336-422 3 Winston-Salem NC GNBONCEU63Z  8645 SUNCOM DBA T-MOBILE USA 424      
336-422 4 Winston-Salem NC GNBONCEU63Z  8645 SUNCOM DBA T-MOBILE USA 424      
336-422 5 Winston-Salem NC GNBONCEU63Z  8645 SUNCOM DBA T-MOBILE USA 424      
336-422 6 Winston-Salem NC GNBONCEU27Z  998E BANDWIDTH.COM CLEC, LLC - NC 424      
336-422 7 Winston-Salem NC GNBONCEU27Z  998E BANDWIDTH.COM CLEC, LLC - NC 424      
336-422 8 Winston-Salem NC GNBONCEU63Z  8645 SUNCOM DBA T-MOBILE USA 424      
336-422 9 Winston-Salem NC GNBONCEU63Z  8645 SUNCOM DBA T-MOBILE USA 424      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.