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: 788

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
628-788 A San Francisco: Montrose-Evergreen DA CA SNJUCACL7MD  965H FRACTEL, LLC 722      
628-788 0 San Francisco: Montrose-Evergreen DA CA SNJUCACL4MD  939H COMMIO, LLC 722   2021-08-31   
628-788 1 San Francisco: Montrose-Evergreen DA CA SNJUCACL4MD  939H COMMIO, LLC 722   2021-08-31   
628-788 2 San Francisco: Montrose-Evergreen DA CA SNJUCACL9MD  516J TON80 COMMUNICATIONS, LLC 722   2021-06-28   
628-788 3 San Francisco: Montrose-Evergreen DA CA SNJUCACL4MD  939H COMMIO, LLC 722   2021-08-31   
628-788 4 San Francisco: Montrose-Evergreen DA CA SNJUCACL4MD  939H COMMIO, LLC 722   2021-08-31   
628-788 5 San Francisco: Montrose-Evergreen DA CA SNFCCA21XNZ  624H ONVOY SPECTRUM, LLC 722   2021-11-13   
628-788 6 San Francisco: Montrose-Evergreen DA CA SNFCCA21XNZ  624H ONVOY SPECTRUM, LLC 722   2021-11-13   
628-788 7 San Francisco: Montrose-Evergreen DA CA SNFCCA21XNZ  624H ONVOY SPECTRUM, LLC 722   2021-11-13   
628-788 8 San Francisco: Montrose-Evergreen DA CA SNJUCACL7MD  965H FRACTEL, LLC 722   2021-04-09   
628-788 9 San Francisco: Montrose-Evergreen DA CA SNFCCA21XNZ  624H ONVOY SPECTRUM, LLC 722   2021-11-13   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.