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: 497

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
336-497 A Kernersville NC GNBONCEU02Z  829J PAETEC ITEL, LLC 424   2025-02-12   
336-497 0 Kernersville NC GNBONCEU02Z  829J PAETEC ITEL, LLC 424   2004-03-29   
336-497 1 Kernersville NC GNBONCEU27Z  998E BANDWIDTH.COM CLEC, LLC - NC 424   2011-02-11   
336-497 2 Kernersville NC GNBPNCDNDS1  7973 LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 424   2011-04-18   
336-497 3 Kernersville NC GNBONCCKX5X  7835 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC 424   2006-01-18   
336-497 4 Kernersville NC GNBONCEUY1X  793K TWC IP ENABLED SERVICES, LLC 424   2007-01-24   
336-497 5 Kernersville NC GNBONCEUY1X  793K TWC IP ENABLED SERVICES, LLC 424   2011-03-29   
336-497 6 Kernersville NC GNBONCEU65Z  8645 SUNCOM DBA T-MOBILE USA 424   2009-06-11   
336-497 7 Kernersville NC GNBONCEU65Z  5562 METROPCS, INC. 424   2007-04-11   
336-497 8 Kernersville NC GNBONCEU65Z  5562 METROPCS, INC. 424   2011-03-17   
336-497 9 Kernersville NC GNBONCEU02Z  829J PAETEC ITEL, LLC 424      

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.