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: 666

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
840-666 A Fontana CA LSANCAJWIMD  965H FRACTEL, LLC 730      
840-666 0 Fontana CA RVSDCALBCM4  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
840-666 1 Fontana CA LSANCAJW7MD  939H COMMIO, LLC 730      
840-666 2 Fontana CA LSANCAJW7MD  939H COMMIO, LLC 730      
840-666 3 Fontana CA LSANCAJW7MD  939H COMMIO, LLC 730      
840-666 4 Fontana CA LSANCAJW7MD  939H COMMIO, LLC 730      
840-666 5 Fontana CA RVSDCALBCM4  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
840-666 6 Fontana CA LSANCAJWIMD  965H FRACTEL, LLC 730      
840-666 7 Fontana CA RVSDCALBCM4  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
840-666 8 Fontana CA RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730      
840-666 9 Fontana CA RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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