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: 200

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
840-200 A Chino CA LSANCAJWIMD  965H FRACTEL, LLC 730      
840-200 0 Chino CA   965H FRACTEL, LLC 730   2021-03-06   
840-200 1 Chino CA   073H TELNYX LLC 730   2021-05-23   
840-200 2 Chino CA   965H FRACTEL, LLC 730   2021-05-13   
840-200 3 Chino CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2021-06-25   
840-200 4 Chino CA   6529 T-MOBILE USA, INC. 730   2021-05-22   
840-200 5 Chino CA   6529 T-MOBILE USA, INC. 730   2021-05-22   
840-200 6 Chino CA   6529 T-MOBILE USA, INC. 730   2021-05-22   
840-200 7 Chino CA   6529 T-MOBILE USA, INC. 730   2021-05-22   
840-200 8 Chino CA   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2021-03-31   
840-200 9 Chino CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2021-03-18   

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

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