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: 743

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
707-743 A Potter Valley CA PTVYCA11RS0  9740 PACIFIC BELL 722      
707-743 0 Potter Valley CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
707-743 1 Potter Valley CA PTVYCA11RS0  9740 PACIFIC BELL 722      
707-743 2 Potter Valley CA PTVYCA11RS0  9740 PACIFIC BELL 722      
707-743 3 Potter Valley CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
707-743 4 Potter Valley CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
707-743 6 Potter Valley CA SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
707-743 7 Potter Valley CA SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722      
707-743 8 Potter Valley CA   515J IP HORIZON LLC 722      
707-743 9 Potter Valley CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.