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: 574

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
707-574 A Mad River CA MDRVCAXFRS3  4420 FRONTIER CALIFORNIA INC. 722      
707-574 1 Mad River CA SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722      
707-574 2 Mad River CA SNVACAHZ0MD  508J CENTURYLINK COMMUNICATIONS, LLC 722      
707-574 3 Mad River CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
707-574 4 Mad River CA FRMTCAJYDS0  707H INTEGRATED PATH COMMUNICATIONS, LLC - CA 722      
707-574 5 Mad River CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
707-574 6 Mad River CA MDRVCAXFRS3  4420 FRONTIER CALIFORNIA INC. 722      
707-574 7 Mad River CA SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722      
707-574 8 Mad River CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
707-574 9 Mad River CA SNJUCACL3MD  073H TELNYX LLC 722      

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.