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: 743 [Rate centres in NPA 743] [Dial plan for NPA 743]

NXX: 374

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
743-374 A Winston-Salem NC GNBPNCEM8MD  516J TON80 COMMUNICATIONS, LLC 424      
743-374 0 Winston-Salem NC GNBONCEU38Z  8645 SUNCOM DBA T-MOBILE USA 424      
743-374 1 Winston-Salem NC GNBONCEU38Z  8645 SUNCOM DBA T-MOBILE USA 424      
743-374 2 Winston-Salem NC GNBPNCEM8MD  516J TON80 COMMUNICATIONS, LLC 424      
743-374 3 Winston-Salem NC GNBONCEU78Z  624H ONVOY SPECTRUM, LLC 424      
743-374 4 Winston-Salem NC GNBONCEU78Z  624H ONVOY SPECTRUM, LLC 424      
743-374 5 Winston-Salem NC GNBONCEU38Z  8645 SUNCOM DBA T-MOBILE USA 424      
743-374 6 Winston-Salem NC GNBONCEU38Z  8645 SUNCOM DBA T-MOBILE USA 424      
743-374 7 Winston-Salem NC GNBPNCEM2MD  939H COMMIO, LLC 424      
743-374 8 Winston-Salem NC GNBONCEU38Z  8645 SUNCOM DBA T-MOBILE USA 424      
743-374 9 Winston-Salem NC GNBONCEU38Z  8645 SUNCOM DBA T-MOBILE USA 424      

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.