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: 899

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
840-899 A Highland CA LSANCAJWIMD  965H FRACTEL, LLC 730      
840-899 0 Highland CA   649C ONVOY, LLC - CA 730   2026-03-02   
840-899 1 Highland CA   649C ONVOY, LLC - CA 730   2021-10-02   
840-899 2 Highland CA   649C ONVOY, LLC - CA 730   2021-10-02   
840-899 3 Highland CA   649C ONVOY, LLC - CA 730   2021-10-02   
840-899 4 Highland CA   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2021-10-21   
840-899 5 Highland CA   939H COMMIO, LLC 730   2021-10-11   
840-899 6 Highland CA   939H COMMIO, LLC 730   2021-10-11   
840-899 7 Highland CA   939H COMMIO, LLC 730   2021-10-11   
840-899 8 Highland CA   939H COMMIO, LLC 730   2021-10-11   
840-899 9 Highland CA   965H FRACTEL, LLC 730   2021-09-13   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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