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: 591

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
925-591 A Livermore CA   649C ONVOY, LLC - CA 722   2026-10-18   
925-591 0 Livermore CA   649C ONVOY, LLC - CA 722   2026-10-18   
925-591 1 Livermore CA   981E BANDWIDTH.COM CLEC, LLC - CA 722   2026-10-19   
925-591 2 Livermore CA   6529 T-MOBILE USA, INC. 722   2026-10-19   

Last updated: Tue, 29 Sep 2026 03:00:13 UTC

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