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: 677

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
840-677 A Etiwanda CA LSANCAJWIMD  965H FRACTEL, LLC 730      
840-677 0 Etiwanda CA   073H TELNYX LLC 730   2022-07-14   
840-677 1 Etiwanda CA   649C ONVOY, LLC - CA 730   2023-10-30   
840-677 2 Etiwanda CA   649C ONVOY, LLC - CA 730   2023-10-30   
840-677 3 Etiwanda CA   649C ONVOY, LLC - CA 730   2023-10-30   
840-677 4 Etiwanda CA   649C ONVOY, LLC - CA 730   2023-10-30   
840-677 5 Etiwanda CA   649C ONVOY, LLC - CA 730   2023-10-30   
840-677 6 Etiwanda CA   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2023-02-05   
840-677 7 Etiwanda CA   965H FRACTEL, LLC 730   2021-12-27   
840-677 8 Etiwanda CA   649C ONVOY, LLC - CA 730   2022-12-16   
840-677 9 Etiwanda CA   6529 T-MOBILE USA, INC. 730   2022-05-27   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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