Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 925 [Rate centres in NPA 925] [Dial plan for NPA 925]

NXX: 428

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
925-428 A Antioch CA OKLECAZV1MD  6529 T-MOBILE USA, INC. 722      
925-428 0 Antioch CA   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2013-07-18   
925-428 1 Antioch CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2013-10-31   
925-428 2 Antioch CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2013-11-20   
925-428 3 Antioch CA   6529 T-MOBILE USA, INC. 722   2014-01-16   
925-428 4 Antioch CA   6529 T-MOBILE USA, INC. 722   2013-12-17   
925-428 5 Antioch CA   649C ONVOY, LLC - CA 722   2013-12-02   
925-428 6 Antioch CA   649C ONVOY, LLC - CA 722   2013-12-02   
925-428 7 Antioch CA   6529 T-MOBILE USA, INC. 722   2013-11-14   
925-428 8 Antioch CA   6529 T-MOBILE USA, INC. 722   2013-07-11   
925-428 9 Antioch CA   6529 T-MOBILE USA, INC. 722   2013-06-15   

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

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