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: 806

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
951-806 A Moreno CA   649C ONVOY, LLC - CA 730   2025-12-07   
951-806 0 Moreno CA   649C ONVOY, LLC - CA 730   2025-12-07   
951-806 1 Moreno CA   6529 T-MOBILE USA, INC. 730   2025-12-08   
951-806 2 Moreno CA   6529 T-MOBILE USA, INC. 730   2025-12-08   
951-806 3 Moreno CA   6529 T-MOBILE USA, INC. 730   2025-12-08   
951-806 4 Moreno CA   6529 T-MOBILE USA, INC. 730   2025-12-08   
951-806 5 Moreno CA   6529 T-MOBILE USA, INC. 730   2025-12-08   
951-806 6 Moreno CA   6529 T-MOBILE USA, INC. 730   2025-12-08   

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.