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: 415 [Rate centres in NPA 415] [Dial plan for NPA 415]

NXX:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
415-231 A San Francisco: Montrose-Evergreen DA CA   6529 T-MOBILE USA, INC. 722   2013-01-25   
415-231 0 San Francisco: Montrose-Evergreen DA CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2013-04-15   
415-231 1 San Francisco: Montrose-Evergreen DA CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2013-04-15   
415-231 2 San Francisco: Montrose-Evergreen DA CA   981E BANDWIDTH.COM CLEC, LLC - CA 722   2014-03-23   
415-231 3 San Francisco: Montrose-Evergreen DA CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2013-03-31   
415-231 4 San Francisco: Montrose-Evergreen DA CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2013-06-11   
415-231 5 San Francisco: Montrose-Evergreen DA CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2013-06-21   
415-231 6 San Francisco: Montrose-Evergreen DA CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2013-06-21   
415-231 7 San Francisco: Montrose-Evergreen DA CA   649C ONVOY, LLC - CA 722   2014-03-16   
415-231 8 San Francisco: Montrose-Evergreen DA CA   6529 T-MOBILE USA, INC. 722   2013-06-10   
415-231 9 San Francisco: Montrose-Evergreen DA CA   6529 T-MOBILE USA, INC. 722   2013-01-25   

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.