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: 346

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
831-346 A Santa Cruz CA OKLECAZV1MD  6529 T-MOBILE USA, INC. 722      
831-346 0 Santa Cruz CA   649C ONVOY, LLC - CA 722   2016-04-12   
831-346 1 Santa Cruz CA   649C ONVOY, LLC - CA 722   2015-04-30   
831-346 2 Santa Cruz CA   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2015-06-19   
831-346 3 Santa Cruz CA   649C ONVOY, LLC - CA 722   2015-06-29   
831-346 4 Santa Cruz CA   649C ONVOY, LLC - CA 722   2015-06-29   
831-346 5 Santa Cruz CA   649C ONVOY, LLC - CA 722   2016-03-27   
831-346 6 Santa Cruz CA   318J COMCAST IP PHONE, LLC 722   2014-11-24   
831-346 7 Santa Cruz CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2015-02-27   
831-346 8 Santa Cruz CA   6529 T-MOBILE USA, INC. 722   2015-07-04   
831-346 9 Santa Cruz CA   6529 T-MOBILE USA, INC. 722   2014-11-21   

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

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