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: 788

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
840-788 A Fontana CA LSANCAJWIMD  965H FRACTEL, LLC 730      
840-788 0 Fontana CA LSANCA03IMD  553J WHITESKY COMMUNICATIONS, LLC 730   2021-10-01   
840-788 1 Fontana CA LSANCARC32Z  073H TELNYX LLC 730   2021-10-17   
840-788 2 Fontana CA LSANCA03GMD  624H ONVOY SPECTRUM, LLC 730   2021-11-13   
840-788 3 Fontana CA LSANCA03GMD  624H ONVOY SPECTRUM, LLC 730   2021-11-13   
840-788 4 Fontana CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2021-10-02   
840-788 5 Fontana CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2021-10-02   
840-788 6 Fontana CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2021-10-02   
840-788 7 Fontana CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2021-10-02   
840-788 8 Fontana CA LSANCAJWIMD  965H FRACTEL, LLC 730   2021-09-16   
840-788 9 Fontana CA LSANCA03GMD  624H ONVOY SPECTRUM, LLC 730   2021-11-13   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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