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: 407

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
707-407 A Eureka CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
707-407 0 Eureka CA EURKCA01DMD  388E CEBRIDGE TELECOM CA, LLC DBA SUDDENLINK COMMS - CA 722   2009-09-08   
707-407 1 Eureka CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2022-11-03   
707-407 2 Eureka CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2022-11-03   
707-407 3 Eureka CA EURKCA01DMD  388E CEBRIDGE TELECOM CA, LLC DBA SUDDENLINK COMMS - CA 722   2009-09-08   
707-407 4 Eureka CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
707-407 5 Eureka CA CNCRCADOCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2003-06-17   
707-407 6 Eureka CA CNCRCADOCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2003-11-10   
707-407 7 Eureka CA CNCRCADOCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2003-11-10   
707-407 8 Eureka CA CNCRCADOCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2004-02-03   
707-407 9 Eureka CA CNCRCADOCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2004-06-07   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.