Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 831 [Rate centres in NPA 831] [Dial plan for NPA 831]

NXX: 243

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
831-243 A Salinas CA SLNSCA01Y0X  425J CSC WIRELESS, LLC 736      
831-243 0 Salinas CA   6529 T-MOBILE USA, INC. 736   2020-10-09   
831-243 1 Salinas CA   6529 T-MOBILE USA, INC. 736   2020-10-09   
831-243 2 Salinas CA   425J CSC WIRELESS, LLC 736   2020-08-24   
831-243 3 Salinas CA   649C ONVOY, LLC - CA 736   2020-11-25   
831-243 4 Salinas CA   649C ONVOY, LLC - CA 736   2020-11-25   
831-243 5 Salinas CA   649C ONVOY, LLC - CA 736   2020-11-25   
831-243 6 Salinas CA   649C ONVOY, LLC - CA 736   2020-11-25   
831-243 7 Salinas CA   073H TELNYX LLC 736   2021-02-20   
831-243 8 Salinas CA   6529 T-MOBILE USA, INC. 736   2021-04-10   
831-243 9 Salinas CA   6529 T-MOBILE USA, INC. 736   2021-04-10   

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

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