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: 412

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
707-412 A Gualala CA   515J IP HORIZON LLC 722      
707-412 0 Gualala CA   981E BANDWIDTH.COM CLEC, LLC - CA 722   2011-07-29   
707-412 1 Gualala CA   515J IP HORIZON LLC 722      
707-412 2 Gualala CA   515J IP HORIZON LLC 722      
707-412 3 Gualala CA   649C ONVOY, LLC - CA 722   2012-12-30   
707-412 4 Gualala CA   073H TELNYX LLC 722   2017-08-04   
707-412 5 Gualala CA   939H COMMIO, LLC 722   2022-05-12   
707-412 6 Gualala CA   516C AT&T CORP. 722   2025-01-08   
707-412 7 Gualala CA   649C ONVOY, LLC - CA 722   2007-04-09   
707-412 8 Gualala CA   981E BANDWIDTH.COM CLEC, LLC - CA 722   2009-02-25   
707-412 9 Gualala CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2013-03-29   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.