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: 840 [Rate centres in NPA 840] [Dial plan for NPA 840]

NXX: 699

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
840-699 A Ontario CA LSANCAJWIMD  965H FRACTEL, LLC 730      
840-699 0 Ontario CA LSANCA03IMD  553J WHITESKY COMMUNICATIONS, LLC 730   2021-10-02   
840-699 1 Ontario CA LSANCAJW7MD  939H COMMIO, LLC 730   2021-10-10   
840-699 2 Ontario CA LSANCAJW7MD  939H COMMIO, LLC 730   2021-10-10   
840-699 3 Ontario CA LSANCAJW7MD  939H COMMIO, LLC 730   2021-10-10   
840-699 4 Ontario CA ONTRCAXPXPY  649C ONVOY, LLC - CA 730   2022-09-12   
840-699 5 Ontario CA ONTRCAXPXPY  649C ONVOY, LLC - CA 730   2022-09-12   
840-699 6 Ontario CA ONTRCAXPXPY  649C ONVOY, LLC - CA 730   2023-10-16   
840-699 7 Ontario CA RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730   2022-02-05   
840-699 8 Ontario CA RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730   2022-02-05   
840-699 9 Ontario CA LSANCAJWIMD  965H FRACTEL, LLC 730   2021-09-16   

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.