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: 665

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
831-665 A Hollister CA SLNSCA01XXX  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 736      
831-665 0 Hollister CA MTRYCAPM5MD  145J TERRA NOVA TELECOM INC. 736   2024-02-12   
831-665 1 Hollister CA SLNSCA01X9Y  649C ONVOY, LLC - CA 736   2017-05-11   
831-665 2 Hollister CA SLNSCA01X8Y  5562 METROPCS, INC. 736   2017-12-24   
831-665 3 Hollister CA SLNSCA01X8Y  6529 T-MOBILE USA, INC. 736   2020-12-18   
831-665 4 Hollister CA SLNSCA01X8Y  6529 T-MOBILE USA, INC. 736   2024-08-25   
831-665 5 Hollister CA   145J TERRA NOVA TELECOM INC. 736   2023-06-24   
831-665 6 Hollister CA SLNSCA01XXX  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 736   2012-01-08   
831-665 9 Hollister CA SLNSCA01X8Y  6529 T-MOBILE USA, INC. 736   2021-11-25   

Last updated: Fri, 25 Jul 2025 03:21:23 UTC

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