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: 343

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
707-343 A Sonoma CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
707-343 0 Sonoma CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2012-12-31   
707-343 1 Sonoma CA OKLDCA03XOY  318J COMCAST IP PHONE, LLC 722   2005-09-27   
707-343 4 Sonoma CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2012-12-31   
707-343 5 Sonoma CA OKLECAZV1MD  5562 METROPCS, INC. 722   2006-09-04   
707-343 6 Sonoma CA OKLECAZV1MD  5562 METROPCS, INC. 722   2006-09-04   
707-343 7 Sonoma CA SNFCCA01XGX  516C AT&T CORP. 722   2006-06-30   
707-343 8 Sonoma CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2014-10-30   
707-343 9 Sonoma CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2008-01-29   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.