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: 510 [Rate centres in NPA 510] [Dial plan for NPA 510]

NXX:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
510-345 A Oakland: Berkeley DA CA   6529 T-MOBILE USA, INC. 722      
510-345 0 Oakland: Berkeley DA CA   649C ONVOY, LLC - CA 722   2016-03-14   
510-345 1 Oakland: Berkeley DA CA   649C ONVOY, LLC - CA 722   2016-03-14   
510-345 2 Oakland: Berkeley DA CA   649C ONVOY, LLC - CA 722   2016-03-14   
510-345 3 Oakland: Berkeley DA CA   649C ONVOY, LLC - CA 722   2016-03-14   
510-345 4 Oakland: Berkeley DA CA   649C ONVOY, LLC - CA 722   2016-04-23   
510-345 5 Oakland: Berkeley DA CA   649C ONVOY, LLC - CA 722   2016-04-23   
510-345 6 Oakland: Berkeley DA CA   7453 U.S. TELEPACIFIC CORP. - CA 722   2016-04-15   
510-345 7 Oakland: Berkeley DA CA   6529 T-MOBILE USA, INC. 722   2016-03-13   
510-345 8 Oakland: Berkeley DA CA   6529 T-MOBILE USA, INC. 722   2016-03-13   
510-345 9 Oakland: Berkeley DA CA   6529 T-MOBILE USA, INC. 722   2016-03-13   

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.