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: 429

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
925-429 A Concord CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
925-429 0 Concord CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
925-429 1 Concord CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
925-429 2 Concord CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
925-429 3 Concord CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
925-429 4 Concord CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
925-429 5 Concord CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
925-429 6 Concord CA   649C ONVOY, LLC - CA 722   2021-07-30   
925-429 8 Concord CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2010-09-17   
925-429 9 Concord CA   649C ONVOY, LLC - CA 722   2021-07-30   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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