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: 346

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
336-346 A Greensboro NC GNBONCEU97Z  8660 WINDSTREAM NUVOX, INC. 424      
336-346 0 Greensboro NC GNBONCEU97Z  8660 WINDSTREAM NUVOX, INC. 424      
336-346 1 Greensboro NC GNBONCEU97Z  8660 WINDSTREAM NUVOX, INC. 424      
336-346 2 Greensboro NC GNBONCCKX9X  3235 LEVEL 3 COMMUNICATIONS, LLC - NC 424   2013-02-09   
336-346 3 Greensboro NC GNBONCEU97Z  8660 WINDSTREAM NUVOX, INC. 424      
336-346 4 Greensboro NC GNBONCEU45Z  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 424   2015-02-24   
336-346 5 Greensboro NC GNBONCEU97Z  8660 WINDSTREAM NUVOX, INC. 424   2003-11-04   
336-346 6 Greensboro NC GNBONCEU45Z  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 424   2011-04-27   
336-346 7 Greensboro NC GNBONCEU38Z  8645 SUNCOM DBA T-MOBILE USA 424   2011-02-06   
336-346 8 Greensboro NC GNBONCEU27Z  998E BANDWIDTH.COM CLEC, LLC - NC 424   2012-08-12   
336-346 9 Greensboro NC GNBONCEU45Z  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 424   2015-02-24   

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.