Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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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   553J WHITESKY COMMUNICATIONS, LLC 730   2021-10-02   
840-699 1 Ontario CA   939H COMMIO, LLC 730   2021-10-10   
840-699 2 Ontario CA   939H COMMIO, LLC 730   2021-10-10   
840-699 3 Ontario CA   939H COMMIO, LLC 730   2021-10-10   
840-699 4 Ontario CA   649C ONVOY, LLC - CA 730   2022-09-12   
840-699 5 Ontario CA   649C ONVOY, LLC - CA 730   2022-09-12   
840-699 6 Ontario CA   649C ONVOY, LLC - CA 730   2023-10-16   
840-699 7 Ontario CA   6529 T-MOBILE USA, INC. 730   2022-02-05   
840-699 8 Ontario CA   6529 T-MOBILE USA, INC. 730   2022-02-05   
840-699 9 Ontario CA   965H FRACTEL, LLC 730   2021-09-16   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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