Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
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Switch: DAVLCA13DS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
925-248 A Dublin-San Ramon CA 9740 PACIFIC BELL 722      
925-648 A Danville CA 9740 PACIFIC BELL 722      
925-735 A Bishop Ranch CA 9740 PACIFIC BELL 722      
925-736 A Danville CA 9740 PACIFIC BELL 722      
925-815 A Bishop Ranch CA 9740 PACIFIC BELL 722      
925-964 A Danville CA 9740 PACIFIC BELL 722      
925-967 A Dublin-San Ramon CA 9740 PACIFIC BELL 722      
925-968 A Bishop Ranch CA 9740 PACIFIC BELL 722      

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

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