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: 551

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
925-551 A Dublin-San Ramon CA SNRMCA11DS1  9740 PACIFIC BELL 722      
925-551 0 Dublin-San Ramon CA   9740 PACIFIC BELL 722      
925-551 1 Dublin-San Ramon CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2011-05-07   
925-551 2 Dublin-San Ramon CA   9262 UTILITY TELECOM GROUP, LLC - CA 722   2006-05-22   
925-551 3 Dublin-San Ramon CA   9740 PACIFIC BELL 722      
925-551 4 Dublin-San Ramon CA   9740 PACIFIC BELL 722      
925-551 5 Dublin-San Ramon CA   9740 PACIFIC BELL 722      
925-551 6 Dublin-San Ramon CA   9740 PACIFIC BELL 722      
925-551 7 Dublin-San Ramon CA   9740 PACIFIC BELL 722      
925-551 8 Dublin-San Ramon CA   9740 PACIFIC BELL 722      
925-551 9 Dublin-San Ramon CA   9740 PACIFIC BELL 722      

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

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