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
628-758 A San Francisco: Montrose-Evergreen DA CA   965H FRACTEL, LLC 722   2019-05-14   
628-758 0 San Francisco: Montrose-Evergreen DA CA   649C ONVOY, LLC - CA 722   2020-02-10   
628-758 1 San Francisco: Montrose-Evergreen DA CA   5562 METRO PCS, INC. 722   2019-08-11   
628-758 2 San Francisco: Montrose-Evergreen DA CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2019-06-26   
628-758 3 San Francisco: Montrose-Evergreen DA CA   649C ONVOY, LLC - CA 722   2020-02-10   
628-758 4 San Francisco: Montrose-Evergreen DA CA   197D VONAGE NETWORK INC. 722   2020-07-15   
628-758 5 San Francisco: Montrose-Evergreen DA CA   5562 METRO PCS, INC. 722   2020-08-11   
628-758 6 San Francisco: Montrose-Evergreen DA CA   965H FRACTEL, LLC 722   2019-05-14   
628-758 7 San Francisco: Montrose-Evergreen DA CA   649C ONVOY, LLC - CA 722   2019-10-05   
628-758 8 San Francisco: Montrose-Evergreen DA CA   6529 T-MOBILE USA, INC. 722   2019-10-25   
628-758 9 San Francisco: Montrose-Evergreen DA CA   197D VONAGE NETWORK INC. 722   2020-07-09   

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.