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: 951 [Rate centres in NPA 951] [Dial plan for NPA 951]

NXX: 829

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
951-829 A Corona CA   649C ONVOY, LLC - CA 730   2026-09-11   
951-829 0 Corona CA   649C ONVOY, LLC - CA 730   2026-09-11   
951-829 1 Corona CA   649C ONVOY, LLC - CA 730   2026-09-11   
951-829 2 Corona CA   649C ONVOY, LLC - CA 730   2026-09-11   
951-829 7 Corona CA   824J OPENTACT INC. 730   2026-10-15   
951-829 9 Corona CA   649C ONVOY, LLC - CA 730   2026-09-14   

Last updated: Sat, 10 Oct 2026 15:24:20 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.