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
628-777 A San Francisco: Montrose-Evergreen DA CA   649C ONVOY, LLC - CA 722      
628-777 0 San Francisco: Montrose-Evergreen DA CA   4129 O1 COMMUNICATIONS, INC. - CA 722   2015-07-13   
628-777 1 San Francisco: Montrose-Evergreen DA CA   649C ONVOY, LLC - CA 722   2016-03-01   
628-777 2 San Francisco: Montrose-Evergreen DA CA   981E BANDWIDTH.COM CLEC, LLC - CA 722   2016-07-17   
628-777 3 San Francisco: Montrose-Evergreen DA CA   981E BANDWIDTH.COM CLEC, LLC - CA 722   2016-07-17   
628-777 4 San Francisco: Montrose-Evergreen DA CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2016-07-01   
628-777 5 San Francisco: Montrose-Evergreen DA CA   981E BANDWIDTH.COM CLEC, LLC - CA 722   2016-08-25   
628-777 6 San Francisco: Montrose-Evergreen DA CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2015-06-19   
628-777 7 San Francisco: Montrose-Evergreen DA CA   649C ONVOY, LLC - CA 722   2015-03-21   
628-777 8 San Francisco: Montrose-Evergreen DA CA   6529 T-MOBILE USA, INC. 722   2015-03-24   
628-777 9 San Francisco: Montrose-Evergreen DA CA   6529 T-MOBILE USA, INC. 722   2015-03-24   

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.