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: 408 [Rate centres in NPA 408] [Dial plan for NPA 408]

NXX: 357

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
408-357 A Los Gatos CA LSGTCAXFDS0  2319 FRONTIER CALIFORNIA INC. 722      
408-357 0 Los Gatos CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2011-07-28   
408-357 1 Los Gatos CA LSGTCAXFDS0  2319 FRONTIER CALIFORNIA INC. 722      
408-357 2 Los Gatos CA SNJUCACL3MD  073H TELNYX LLC 722   2017-06-05   
408-357 3 Los Gatos CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2011-07-28   
408-357 4 Los Gatos CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2011-07-28   
408-357 5 Los Gatos CA LSGTCAXFDS0  2319 FRONTIER CALIFORNIA INC. 722      
408-357 6 Los Gatos CA LSGTCAXFDS0  2319 FRONTIER CALIFORNIA INC. 722      
408-357 7 Los Gatos CA SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722   2003-11-15   
408-357 8 Los Gatos CA SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722   2001-06-14   
408-357 9 Los Gatos CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2011-08-13   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.