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: 664

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
336-664 A Greensboro NC GNBONCAP66F  9417 BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 424      
336-664 0 Greensboro NC GNBONCAP66F  9417 BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 424      
336-664 1 Greensboro NC GNBONCAP66F  9417 BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 424      
336-664 2 Greensboro NC GNBONCAP66F  9417 BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 424      
336-664 3 Greensboro NC GNBONCAP66F  9417 BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 424      
336-664 4 Greensboro NC GNBONCAP66F  9417 BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 424      
336-664 5 Greensboro NC GNBONCAP66F  9417 BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 424      
336-664 6 Greensboro NC GNBONCAP66F  9417 BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 424      
336-664 7 Greensboro NC GNBONCAP66F  9417 BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 424      
336-664 8 Greensboro NC GNBONCEU24Z  638E ONVOY, LLC - NC 424   2015-12-23   
336-664 9 Greensboro NC GNBONCAP66F  9417 BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 424      

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.