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: 651

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
925-651 A Walnut Creek CA   6529 T-MOBILE USA, INC. 722   2026-10-17   
925-651 0 Walnut Creek CA   649C ONVOY, LLC - CA 722   2026-10-19   
925-651 1 Walnut Creek CA   649C ONVOY, LLC - CA 722   2026-10-19   
925-651 2 Walnut Creek CA   649C ONVOY, LLC - CA 722   2026-10-19   
925-651 3 Walnut Creek CA   649C ONVOY, LLC - CA 722   2026-10-19   
925-651 4 Walnut Creek CA   649C ONVOY, LLC - CA 722   2026-10-19   
925-651 8 Walnut Creek CA   6529 T-MOBILE USA, INC. 722   2026-10-17   
925-651 9 Walnut Creek CA   6529 T-MOBILE USA, INC. 722   2026-10-17   

Last updated: Tue, 01 Sep 2026 00:40:05 UTC

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