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
925-243 A Livermore CA 9740 PACIFIC BELL 722      
925-243 0 Livermore CA 9740 PACIFIC BELL 722      
925-243 1 Livermore CA 9740 PACIFIC BELL 722      
925-243 2 Livermore CA 9740 PACIFIC BELL 722      
925-243 3 Livermore CA 9740 PACIFIC BELL 722      
925-243 4 Livermore CA 9740 PACIFIC BELL 722      
925-243 6 Livermore CA 9740 PACIFIC BELL 722      
925-243 8 Livermore CA 9740 PACIFIC BELL 722      
925-243 9 Livermore CA 9740 PACIFIC BELL 722      
925-245 A Livermore CA 9740 PACIFIC BELL 722      
925-294 A Livermore CA 9740 PACIFIC BELL 722      
925-294 1 Livermore CA 9740 PACIFIC BELL 722      
925-294 2 Livermore CA 9740 PACIFIC BELL 722      
925-294 3 Livermore CA 9740 PACIFIC BELL 722      
925-294 4 Livermore CA 9740 PACIFIC BELL 722      
925-294 5 Livermore CA 9740 PACIFIC BELL 722      
925-294 6 Livermore CA 9740 PACIFIC BELL 722      
925-294 7 Livermore CA 9740 PACIFIC BELL 722      
925-294 8 Livermore CA 9740 PACIFIC BELL 722      
925-294 9 Livermore CA 9740 PACIFIC BELL 722      
925-371 A Livermore CA 9740 PACIFIC BELL 722      
925-371 0 Livermore CA 9740 PACIFIC BELL 722      
925-371 1 Livermore CA 9740 PACIFIC BELL 722      
925-371 2 Livermore CA 9740 PACIFIC BELL 722      
925-371 3 Livermore CA 9740 PACIFIC BELL 722      
925-371 4 Livermore CA 9740 PACIFIC BELL 722      
925-371 5 Livermore CA 9740 PACIFIC BELL 722      
925-371 6 Livermore CA 9740 PACIFIC BELL 722      
925-371 7 Livermore CA 9740 PACIFIC BELL 722      
925-371 8 Livermore CA 9740 PACIFIC BELL 722      
925-373 A Livermore CA 9740 PACIFIC BELL 722      
925-422 A Livermore CA 9740 PACIFIC BELL 722      
925-423 A Livermore CA 9740 PACIFIC BELL 722      
925-424 A Livermore CA 9740 PACIFIC BELL 722      
925-443 A Livermore CA 9740 PACIFIC BELL 722      
925-447 A Livermore CA 9740 PACIFIC BELL 722      
925-449 A Livermore CA 9740 PACIFIC BELL 722      
925-454 A Livermore CA 9740 PACIFIC BELL 722      
925-455 A Livermore CA 9740 PACIFIC BELL 722      
925-455 0 Livermore CA 9740 PACIFIC BELL 722      
925-455 1 Livermore CA 9740 PACIFIC BELL 722      
925-455 2 Livermore CA 9740 PACIFIC BELL 722      
925-455 4 Livermore CA 9740 PACIFIC BELL 722      
925-455 5 Livermore CA 9740 PACIFIC BELL 722      
925-455 6 Livermore CA 9740 PACIFIC BELL 722      
925-455 7 Livermore CA 9740 PACIFIC BELL 722      
925-455 8 Livermore CA 9740 PACIFIC BELL 722      
925-455 9 Livermore CA 9740 PACIFIC BELL 722      
925-456 A Livermore CA 9740 PACIFIC BELL 722      
925-456 0 Livermore CA 9740 PACIFIC BELL 722      

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

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