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: 307

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
707-307 A Napa CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
707-307 0 Napa CA SNFCCA21XPZ  553J WHITESKY COMMUNICATIONS, LLC 722      
707-307 1 Napa CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
707-307 2 Napa CA OKLECAZVGT0  5562 METROPCS, INC. 722      
707-307 3 Napa CA HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
707-307 4 Napa CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
707-307 5 Napa CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
707-307 6 Napa CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
707-307 7 Napa CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
707-307 8 Napa CA OKLECAZVGT0  5562 METROPCS, INC. 722      
707-307 9 Napa CA OKLECAZVGT0  5562 METROPCS, INC. 722      

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.