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: 292

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
743-292 A Elkin NC   638E ONVOY, LLC - NC 424   2026-05-30   
743-292 0 Elkin NC   638E ONVOY, LLC - NC 424   2026-05-30   
743-292 2 Elkin NC   145J TERRA NOVA TELECOM INC. 424   2026-06-04   

Last updated: Sun, 17 May 2026 03:26:51 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.