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: 214

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
840-214 A Marshall CA RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730      
840-214 0 Marshall CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2022-10-15   
840-214 1 Marshall CA   649C ONVOY, LLC - CA 730   2023-10-16   
840-214 2 Marshall CA   649C ONVOY, LLC - CA 730   2022-11-05   
840-214 3 Marshall CA   649C ONVOY, LLC - CA 730   2022-11-05   
840-214 4 Marshall CA   649C ONVOY, LLC - CA 730   2022-11-05   
840-214 5 Marshall CA   649C ONVOY, LLC - CA 730   2022-11-05   
840-214 6 Marshall CA   6529 T-MOBILE USA, INC. 730   2023-12-16   
840-214 7 Marshall CA   6529 T-MOBILE USA, INC. 730   2023-12-16   
840-214 8 Marshall CA   649C ONVOY, LLC - CA 730   2023-10-16   
840-214 9 Marshall CA   6529 T-MOBILE USA, INC. 730   2022-10-14   

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

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