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: 266

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
831-266 A Santa Cruz CA OKLECAZV1MD  6529 T-MOBILE USA, INC. 722      
831-266 0 Santa Cruz CA   490J DISH WIRELESS, LLC 722   2023-06-21   
831-266 1 Santa Cruz CA   939H COMMIO, LLC 722   2022-12-17   
831-266 2 Santa Cruz CA   516J TON80 COMMUNICATIONS, LLC 722   2021-06-01   
831-266 3 Santa Cruz CA   624H ONVOY SPECTRUM, LLC 722   2021-07-23   
831-266 4 Santa Cruz CA   649C ONVOY, LLC - CA 722   2021-07-30   
831-266 5 Santa Cruz CA   6529 T-MOBILE USA, INC. 722   2021-05-15   
831-266 6 Santa Cruz CA   6529 T-MOBILE USA, INC. 722   2021-05-15   
831-266 7 Santa Cruz CA   6529 T-MOBILE USA, INC. 722   2021-05-15   
831-266 8 Santa Cruz CA   6529 T-MOBILE USA, INC. 722   2021-05-15   
831-266 9 Santa Cruz CA   6529 T-MOBILE USA, INC. 722   2021-05-15   

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

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