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: 305

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
707-305 A Vacaville CA OKLECAZV1MD  6529 T-MOBILE USA, INC. 722      
707-305 0 Vacaville CA   515J IP HORIZON LLC 722   2016-09-15   
707-305 1 Vacaville CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2016-09-23   
707-305 2 Vacaville CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2016-07-18   
707-305 3 Vacaville CA   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2016-11-07   
707-305 4 Vacaville CA   7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2017-02-03   
707-305 5 Vacaville CA   318J COMCAST IP PHONE, LLC 722   2018-05-04   
707-305 6 Vacaville CA   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2017-09-22   
707-305 7 Vacaville CA   516C AT&T CORP. 722   2016-07-27   
707-305 8 Vacaville CA   6529 T-MOBILE USA, INC. 722   2016-10-08   
707-305 9 Vacaville CA   6529 T-MOBILE USA, INC. 722   2016-06-18   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.