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: 840

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
925-840 A Antioch CA   649C ONVOY, LLC - CA 722   2026-09-20   
925-840 0 Antioch CA   649C ONVOY, LLC - CA 722   2026-09-20   
925-840 1 Antioch CA   649C ONVOY, LLC - CA 722   2026-09-20   
925-840 2 Antioch CA   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2026-09-25   
925-840 4 Antioch CA   073H TELNYX LLC 722   2026-09-27   
925-840 7 Antioch CA   114J EXIANT COMMUNICATIONS LLC 722   2026-09-21   
925-840 8 Antioch CA   981E BANDWIDTH.COM CLEC, LLC - CA 722   2026-09-21   
925-840 9 Antioch CA   649C ONVOY, LLC - CA 722   2026-09-21   

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

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