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: 529

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
831-529 A Santa Cruz CA SNJUCACL7MD  965H FRACTEL, LLC 722      
831-529 0 Santa Cruz CA   5562 METROPCS, INC. 722   2021-03-14   
831-529 1 Santa Cruz CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2020-09-09   
831-529 2 Santa Cruz CA   624H ONVOY SPECTRUM, LLC 722   2024-08-18   
831-529 3 Santa Cruz CA   965H FRACTEL, LLC 722   2020-05-25   
831-529 4 Santa Cruz CA   6529 T-MOBILE USA, INC. 722   2021-03-11   
831-529 5 Santa Cruz CA   6529 T-MOBILE USA, INC. 722   2021-03-11   
831-529 6 Santa Cruz CA   6529 T-MOBILE USA, INC. 722   2021-03-11   
831-529 7 Santa Cruz CA   6529 T-MOBILE USA, INC. 722   2020-11-20   
831-529 8 Santa Cruz CA   6529 T-MOBILE USA, INC. 722   2020-07-09   
831-529 9 Santa Cruz CA   965H FRACTEL, LLC 722   2020-05-25   

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

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