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: 209 [Rate centres in NPA 209] [Dial plan for NPA 209]

NXX: 973

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
209-973 A Dos Palos CA   939H COMMIO, LLC 728      
209-973 0 Dos Palos CA FRSNCA01DS5  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 728   2022-11-08   
209-973 1 Dos Palos CA FRSNCA01XPZ  073H TELNYX LLC 728   2023-01-26   
209-973 2 Dos Palos CA SNGRCAXFWMD  649C ONVOY, LLC - CA 728   2023-07-22   
209-973 3 Dos Palos CA FRSNCA01TMD  939H COMMIO, LLC 728   2023-08-19   
209-973 4 Dos Palos CA FRSNCA01TMD  939H COMMIO, LLC 728   2023-08-19   
209-973 5 Dos Palos CA FRSNCA01TMD  939H COMMIO, LLC 728   2023-08-19   
209-973 6 Dos Palos CA FRSNCA01TMD  939H COMMIO, LLC 728   2023-08-19   
209-973 7 Dos Palos CA FRSNCA01TMD  939H COMMIO, LLC 728   2023-08-19   
209-973 8 Dos Palos CA FRSNCA01XPZ  073H TELNYX LLC 728   2023-07-17   
209-973 9 Dos Palos CA   649C ONVOY, LLC - CA 728   2024-04-05   

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.