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: 707 [Rate centres in NPA 707] [Dial plan for NPA 707]

NXX: 374

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
707-374 A Rio Vista CA RIVSCAXFDS0  2308 CITIZENS TELECOM CA. DBA FRONTIER COM OF CA 722      
707-374 0 Rio Vista CA RIVSCAXFDS0  2308 CITIZENS TELECOM CA. DBA FRONTIER COM OF CA 722      
707-374 1 Rio Vista CA RIVSCAXFDS0  2308 CITIZENS TELECOM CA. DBA FRONTIER COM OF CA 722      
707-374 2 Rio Vista CA RIVSCAXFDS0  2308 CITIZENS TELECOM CA. DBA FRONTIER COM OF CA 722      
707-374 3 Rio Vista CA RIVSCAXFDS0  2308 CITIZENS TELECOM CA. DBA FRONTIER COM OF CA 722      
707-374 4 Rio Vista CA RIVSCAXFDS0  2308 CITIZENS TELECOM CA. DBA FRONTIER COM OF CA 722      
707-374 5 Rio Vista CA RIVSCAXFDS0  2308 CITIZENS TELECOM CA. DBA FRONTIER COM OF CA 722      
707-374 6 Rio Vista CA RIVSCAXFDS0  2308 CITIZENS TELECOM CA. DBA FRONTIER COM OF CA 722      
707-374 7 Rio Vista CA RIVSCAXFDS0  2308 CITIZENS TELECOM CA. DBA FRONTIER COM OF CA 722      
707-374 8 Rio Vista CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
707-374 9 Rio Vista CA RIVSCAXFDS0  2308 CITIZENS TELECOM CA. DBA FRONTIER COM OF CA 722      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.