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: WNCKCA11DS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
925-256 A Walnut Creek CA 9740 PACIFIC BELL 722      
925-287 A Walnut Creek CA 9740 PACIFIC BELL 722      
925-746 A Walnut Creek CA 9740 PACIFIC BELL 722      
925-930 A Walnut Creek CA 9740 PACIFIC BELL 722      
925-932 A Walnut Creek CA 9740 PACIFIC BELL 722      
925-934 A Walnut Creek CA 9740 PACIFIC BELL 722      
925-935 A Walnut Creek CA 9740 PACIFIC BELL 722      
925-943 A Walnut Creek CA 9740 PACIFIC BELL 722      
925-944 A Walnut Creek CA 9740 PACIFIC BELL 722      
925-945 A Walnut Creek CA 9740 PACIFIC BELL 722      
925-946 A Walnut Creek CA 9740 PACIFIC BELL 722      
925-947 A Walnut Creek CA 9740 PACIFIC BELL 722      
925-952 A Walnut Creek CA 9740 PACIFIC BELL 722      
925-952 0 Walnut Creek CA 9740 PACIFIC BELL 722      
925-952 1 Walnut Creek CA 9740 PACIFIC BELL 722      
925-952 2 Walnut Creek CA 9740 PACIFIC BELL 722      
925-952 3 Walnut Creek CA 9740 PACIFIC BELL 722      
925-952 4 Walnut Creek CA 9740 PACIFIC BELL 722      
925-952 5 Walnut Creek CA 9740 PACIFIC BELL 722      
925-952 6 Walnut Creek CA 9740 PACIFIC BELL 722      
925-952 8 Walnut Creek CA 9740 PACIFIC BELL 722      
925-952 9 Walnut Creek CA 9740 PACIFIC BELL 722      
925-977 A Walnut Creek CA 9740 PACIFIC BELL 722      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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