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: 831 [Rate centres in NPA 831] [Dial plan for NPA 831]

NXX: 704

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
831-704 A Felton CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2024-01-21   
831-704 1 Felton CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2015-06-13   
831-704 2 Felton CA OKLDCA03XOY  318J COMCAST IP PHONE, LLC 722   2015-04-06   
831-704 3 Felton CA SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2013-03-29   
831-704 4 Felton CA SNJSCARMDS0  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 722   2008-05-01   
831-704 5 Felton CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2015-07-27   
831-704 6 Felton CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2009-01-15   
831-704 7 Felton CA OKLDCA03XOY  318J COMCAST IP PHONE, LLC 722   2006-05-01   
831-704 8 Felton CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2012-04-15   
831-704 9 Felton CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2015-07-27   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.