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.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Switch: LVMRCA11DS1

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
925-456 1 Livermore CA 9740 PACIFIC BELL 722      
925-456 2 Livermore CA 9740 PACIFIC BELL 722      
925-456 3 Livermore CA 9740 PACIFIC BELL 722      
925-456 5 Livermore CA 9740 PACIFIC BELL 722      
925-456 6 Livermore CA 9740 PACIFIC BELL 722      
925-456 7 Livermore CA 9740 PACIFIC BELL 722      
925-456 8 Livermore CA 9740 PACIFIC BELL 722      
925-456 9 Livermore CA 9740 PACIFIC BELL 722      
925-606 A Livermore CA 9740 PACIFIC BELL 722      
925-960 A Livermore CA 9740 PACIFIC BELL 722      
925-960 0 Livermore CA 9740 PACIFIC BELL 722      
925-960 1 Livermore CA 9740 PACIFIC BELL 722      
925-960 2 Livermore CA 9740 PACIFIC BELL 722      
925-960 4 Livermore CA 9740 PACIFIC BELL 722      
925-960 6 Livermore CA 9740 PACIFIC BELL 722      
925-960 8 Livermore CA 9740 PACIFIC BELL 722      
925-960 9 Livermore CA 9740 PACIFIC BELL 722      
925-961 A Livermore CA 9740 PACIFIC BELL 722      
925-961 0 Livermore CA 9740 PACIFIC BELL 722      
925-961 1 Livermore CA 9740 PACIFIC BELL 722      
925-961 9 Livermore CA 9740 PACIFIC BELL 722      

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

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