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: 309

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
831-309 A Carmel CA MTRYCA012MD  981E BANDWIDTH.COM CLEC, LLC - CA 736      
831-309 0 Carmel CA MTRYCA012MD  981E BANDWIDTH.COM CLEC, LLC - CA 736      
831-309 1 Carmel CA MTRYCA012MD  981E BANDWIDTH.COM CLEC, LLC - CA 736      
831-309 2 Carmel CA MTRYCA012MD  981E BANDWIDTH.COM CLEC, LLC - CA 736      
831-309 3 Carmel CA MTRYCAPM1MD  939H COMMIO, LLC 736   2022-07-22   
831-309 4 Carmel CA MTRYCA012MD  981E BANDWIDTH.COM CLEC, LLC - CA 736      
831-309 5 Carmel CA MTRYCAPM5MD  145J TERRA NOVA TELECOM INC. 736   2023-08-07   
831-309 7 Carmel CA SLNSCA01XHY  318J COMCAST IP PHONE, LLC 736   2022-06-27   
831-309 8 Carmel CA SLNSCA01XHY  318J COMCAST IP PHONE, LLC 736   2022-06-27   
831-309 9 Carmel CA MTRYCA012MD  981E BANDWIDTH.COM CLEC, LLC - CA 736      

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.