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: 805 [Rate centres in NPA 805] [Dial plan for NPA 805]

NXX: 557

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
805-557 A Thousand Oaks CA THOKCAXFDS1  2319 FRONTIER CALIFORNIA INC. 730      
805-557 0 Thousand Oaks CA THOKCAXFDS1  2319 FRONTIER CALIFORNIA INC. 730      
805-557 1 Thousand Oaks CA THOKCAXFDS1  2319 FRONTIER CALIFORNIA INC. 730      
805-557 2 Thousand Oaks CA THOKCAXFDS1  2319 FRONTIER CALIFORNIA INC. 730      
805-557 3 Thousand Oaks CA THOKCAXFDS1  2319 FRONTIER CALIFORNIA INC. 730      
805-557 4 Thousand Oaks CA THOKCAXFDS1  2319 FRONTIER CALIFORNIA INC. 730      
805-557 5 Thousand Oaks CA BLTNCAADPS2  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 730      
805-557 6 Thousand Oaks CA BLTNCAADPS2  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 730      
805-557 7 Thousand Oaks CA THOKCAXFDS1  2319 FRONTIER CALIFORNIA INC. 730      
805-557 8 Thousand Oaks CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2012-09-28   
805-557 9 Thousand Oaks CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730   2005-09-05   

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.