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: CNCRCA01DS0

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
925-246 A Concord CA 9740 PACIFIC BELL 722      
925-246 0 Concord CA 9740 PACIFIC BELL 722      
925-246 1 Concord CA 9740 PACIFIC BELL 722      
925-246 4 Concord CA 9740 PACIFIC BELL 722      
925-246 6 Concord CA 9740 PACIFIC BELL 722      
925-246 7 Concord CA 9740 PACIFIC BELL 722      
925-246 8 Concord CA 9740 PACIFIC BELL 722      
925-246 9 Concord CA 9740 PACIFIC BELL 722      
925-363 A Concord CA 9740 PACIFIC BELL 722      
925-521 A Concord CA 9740 PACIFIC BELL 722      
925-521 0 Concord CA 9740 PACIFIC BELL 722      
925-521 1 Concord CA 9740 PACIFIC BELL 722      
925-521 2 Concord CA 9740 PACIFIC BELL 722      
925-521 3 Concord CA 9740 PACIFIC BELL 722      
925-521 5 Concord CA 9740 PACIFIC BELL 722      
925-521 7 Concord CA 9740 PACIFIC BELL 722      
925-521 9 Concord CA 9740 PACIFIC BELL 722      
925-602 A Concord CA 9740 PACIFIC BELL 722      
925-609 A Concord CA 9740 PACIFIC BELL 722      
925-609 0 Concord CA 9740 PACIFIC BELL 722      
925-609 1 Concord CA 9740 PACIFIC BELL 722      
925-609 2 Concord CA 9740 PACIFIC BELL 722      
925-609 3 Concord CA 9740 PACIFIC BELL 722      
925-609 5 Concord CA 9740 PACIFIC BELL 722      
925-609 6 Concord CA 9740 PACIFIC BELL 722      
925-609 7 Concord CA 9740 PACIFIC BELL 722      
925-609 8 Concord CA 9740 PACIFIC BELL 722      
925-609 9 Concord CA 9740 PACIFIC BELL 722      
925-677 A Concord CA 9740 PACIFIC BELL 722      
925-677 0 Concord CA 9740 PACIFIC BELL 722      
925-677 2 Concord CA 9740 PACIFIC BELL 722      
925-677 3 Concord CA 9740 PACIFIC BELL 722      
925-677 4 Concord CA 9740 PACIFIC BELL 722      
925-677 5 Concord CA 9740 PACIFIC BELL 722      
925-677 6 Concord CA 9740 PACIFIC BELL 722      
925-677 7 Concord CA 9740 PACIFIC BELL 722      
925-687 A Concord CA 9740 PACIFIC BELL 722      
925-688 A Concord CA 9740 PACIFIC BELL 722      
925-688 0 Concord CA 9740 PACIFIC BELL 722      
925-688 1 Concord CA 9740 PACIFIC BELL 722      
925-688 2 Concord CA 9740 PACIFIC BELL 722      
925-688 3 Concord CA 9740 PACIFIC BELL 722      
925-688 4 Concord CA 9740 PACIFIC BELL 722      
925-688 5 Concord CA 9740 PACIFIC BELL 722      
925-688 7 Concord CA 9740 PACIFIC BELL 722      
925-688 8 Concord CA 9740 PACIFIC BELL 722      
925-688 9 Concord CA 9740 PACIFIC BELL 722      
925-689 A Concord CA 9740 PACIFIC BELL 722      
925-691 A Concord CA 9740 PACIFIC BELL 722      
925-692 A Concord CA 9740 PACIFIC BELL 722      

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

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