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: 628 [Rate centres in NPA 628] [Dial plan for NPA 628]

NXX:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
628-286 A San Francisco: Montrose-Evergreen DA CA   252F WIDE VOICE, LLC - CA 722   2020-03-26   
628-286 0 San Francisco: Montrose-Evergreen DA CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2020-04-02   
628-286 1 San Francisco: Montrose-Evergreen DA CA   252F WIDE VOICE, LLC - CA 722   2020-03-26   
628-286 2 San Francisco: Montrose-Evergreen DA CA   649C ONVOY, LLC - CA 722   2020-05-18   
628-286 3 San Francisco: Montrose-Evergreen DA CA   649C ONVOY, LLC - CA 722   2020-05-18   
628-286 4 San Francisco: Montrose-Evergreen DA CA   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2020-04-22   
628-286 5 San Francisco: Montrose-Evergreen DA CA   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2020-04-22   
628-286 6 San Francisco: Montrose-Evergreen DA CA   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2020-04-22   
628-286 7 San Francisco: Montrose-Evergreen DA CA   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2020-04-22   
628-286 8 San Francisco: Montrose-Evergreen DA CA   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2020-04-22   
628-286 9 San Francisco: Montrose-Evergreen DA CA   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2020-04-22   

Last updated: Sat, 11 Jul 2020 20:37:26 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.