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: 928

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
707-928 A Cobb Mountain CA CBMTCA11RS0  9740 PACIFIC BELL 722      
707-928 0 Cobb Mountain CA CBMTCA11RS0  9740 PACIFIC BELL 722      
707-928 1 Cobb Mountain CA CBMTCA11RS0  9740 PACIFIC BELL 722      
707-928 4 Cobb Mountain CA CBMTCA11RS0  9740 PACIFIC BELL 722      
707-928 5 Cobb Mountain CA CBMTCA11RS0  9740 PACIFIC BELL 722      
707-928 6 Cobb Mountain CA   145J TERRA NOVA TELECOM INC. 722   2021-01-06   
707-928 7 Cobb Mountain CA SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2013-03-29   
707-928 8 Cobb Mountain CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2015-09-27   
707-928 9 Cobb Mountain CA CBMTCA11RS0  9740 PACIFIC BELL 722      

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.