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:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
336-842 A Winston-Salem NC   638E ONVOY, LLC - NC 424      
336-842 0 Winston-Salem NC   638E ONVOY, LLC - NC 424   2015-07-06   
336-842 1 Winston-Salem NC   638E ONVOY, LLC - NC 424   2015-07-06   
336-842 2 Winston-Salem NC   638E ONVOY, LLC - NC 424   2015-07-06   
336-842 3 Winston-Salem NC   580C TIME WARNER CBL INFO SVC (NC) DBA TIME WARNER CBL 424   2015-08-03   
336-842 4 Winston-Salem NC   7674 US LEC OF NORTH CAROLINA, INC. 424   2015-08-19   
336-842 5 Winston-Salem NC   580C TIME WARNER CBL INFO SVC (NC) DBA TIME WARNER CBL 424   2015-09-28   
336-842 6 Winston-Salem NC   3235 LEVEL 3 COMMUNICATIONS, LLC - NC 424   2015-08-16   
336-842 7 Winston-Salem NC   3235 LEVEL 3 COMMUNICATIONS, LLC - NC 424   2015-10-31   
336-842 8 Winston-Salem NC   350F PEERLESS NETWORK OF NORTH CAROLINA, LLC - NC 424   2015-07-07   
336-842 9 Winston-Salem NC   8645 SUNCOM DBA T-MOBILE USA 424   2015-07-07   

Last updated: Sat, 09 Mar 2019 02:16:03 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.