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: 604

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
707-604 A Guerneville CA SNRSCA01KMD  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
707-604 0 Guerneville CA SNRSCA01KMD  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
707-604 1 Guerneville CA SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722      
707-604 2 Guerneville CA HYWRCAMCDS0  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 722      
707-604 3 Guerneville CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
707-604 4 Guerneville CA SNFCCA01XGX  516C AT&T CORP. 722      
707-604 5 Guerneville CA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
707-604 6 Guerneville CA OKLDCA03XOY  318J COMCAST IP PHONE, LLC 722      
707-604 7 Guerneville CA OKLDCA03XOY  318J COMCAST IP PHONE, LLC 722      
707-604 8 Guerneville CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
707-604 9 Guerneville CA SNJUCACL3MD  073H TELNYX LLC 722      

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.