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: 933

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
707-933 A Sonoma CA SONMCA12DS0  9740 PACIFIC BELL 722      
707-933 0 Sonoma CA SONMCA12DS0  9740 PACIFIC BELL 722      
707-933 1 Sonoma CA SONMCA12DS0  9740 PACIFIC BELL 722      
707-933 2 Sonoma CA SONMCA12DS0  9740 PACIFIC BELL 722      
707-933 3 Sonoma CA SONMCA12DS0  9740 PACIFIC BELL 722      
707-933 4 Sonoma CA SONMCA12DS0  9740 PACIFIC BELL 722      
707-933 5 Sonoma CA SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722      
707-933 6 Sonoma CA CNCRCADOCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
707-933 7 Sonoma CA CNCRCADOCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
707-933 8 Sonoma CA SONMCA12DS0  9740 PACIFIC BELL 722      
707-933 9 Sonoma CA SONMCA12DS0  9740 PACIFIC BELL 722      

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.