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: 912

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
707-912 A St Helena CA CNCRCADOCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
707-912 5 St Helena CA CNCRCADOCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2023-04-29   
707-912 6 St Helena CA CNCRCADOCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2022-08-21   
707-912 7 St Helena CA CNCRCADOCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2022-04-02   
707-912 8 St Helena CA SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2022-01-26   
707-912 9 St Helena CA CNCRCADOCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2021-10-15   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.