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: 590

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
707-590 A Benicia CA OKLECAZV1MD  6529 T-MOBILE USA, INC. 722      
707-590 0 Benicia CA   6529 T-MOBILE USA, INC. 722      
707-590 1 Benicia CA   6529 T-MOBILE USA, INC. 722   2015-03-06   
707-590 2 Benicia CA   6529 T-MOBILE USA, INC. 722   2015-03-06   
707-590 3 Benicia CA   6529 T-MOBILE USA, INC. 722      
707-590 4 Benicia CA   6529 T-MOBILE USA, INC. 722   2015-03-06   
707-590 5 Benicia CA   6529 T-MOBILE USA, INC. 722   2015-03-06   
707-590 6 Benicia CA   649C ONVOY, LLC - CA 722   2018-12-23   
707-590 7 Benicia CA   649C ONVOY, LLC - CA 722   2012-05-19   
707-590 8 Benicia CA   6529 T-MOBILE USA, INC. 722   2015-03-06   
707-590 9 Benicia CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2016-09-11   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.