Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 530 [Rate centres in NPA 530] [Dial plan for NPA 530]

NXX: 931

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
530-931 A Susanville CA RDNGCAGA0MD  6261 UNITED STATES CELLULAR - CA 724      
530-931 0 Susanville CA   6261 UNITED STATES CELLULAR - CA 724   2021-07-26   
530-931 1 Susanville CA   5562 METROPCS, INC. 724   2025-04-25   
530-931 2 Susanville CA   6529 T-MOBILE USA, INC. 724   2025-11-14   
530-931 3 Susanville CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 724   2020-05-09   
530-931 4 Susanville CA   7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 724   2017-09-01   
530-931 8 Susanville CA   981E BANDWIDTH.COM CLEC, LLC - CA 724   2009-01-13   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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