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: FLBKCA12DS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
760-451 A Fallbrook CA 9740 PACIFIC BELL 732      
760-451 0 Fallbrook CA 9740 PACIFIC BELL 732      
760-451 1 Fallbrook CA 9740 PACIFIC BELL 732      
760-451 2 Fallbrook CA 9740 PACIFIC BELL 732      
760-451 3 Fallbrook CA 9740 PACIFIC BELL 732      
760-451 8 Fallbrook CA 9740 PACIFIC BELL 732      
760-451 9 Fallbrook CA 9740 PACIFIC BELL 732      
760-723 A Fallbrook CA 9740 PACIFIC BELL 732      
760-728 A Fallbrook CA 9740 PACIFIC BELL 732      
760-731 A Fallbrook CA 9740 PACIFIC BELL 732      
760-731 0 Fallbrook CA 9740 PACIFIC BELL 732      
760-731 1 Fallbrook CA 9740 PACIFIC BELL 732      
760-731 2 Fallbrook CA 9740 PACIFIC BELL 732      
760-731 3 Fallbrook CA 9740 PACIFIC BELL 732      
760-731 4 Fallbrook CA 9740 PACIFIC BELL 732      
760-731 5 Fallbrook CA 9740 PACIFIC BELL 732      
760-731 6 Fallbrook CA 9740 PACIFIC BELL 732      
760-731 7 Fallbrook CA 9740 PACIFIC BELL 732      
760-731 9 Fallbrook CA 9740 PACIFIC BELL 732      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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