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: LKSDCA12DS0

Remotes:

Switch Switch name Switch type
CAMPCA11RS0  CAMPO  RSC 
DLZRCA11RS0  DULZURA  RSC 
JCMBCA11RS0  JACUMBA  RSC 
PNVYCA11RS0  PINE VALLEY  RSC 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
619-390 A El Cajon CA 9740 PACIFIC BELL 732      
619-443 A El Cajon CA 9740 PACIFIC BELL 732      
619-561 A El Cajon CA 9740 PACIFIC BELL 732      
619-938 A El Cajon CA 9740 PACIFIC BELL 732      
619-938 0 El Cajon CA 9740 PACIFIC BELL 732      
619-938 1 El Cajon CA 9740 PACIFIC BELL 732      
619-938 6 El Cajon CA 9740 PACIFIC BELL 732      
619-938 7 El Cajon CA 9740 PACIFIC BELL 732      
619-938 8 El Cajon CA 9740 PACIFIC BELL 732      
619-938 9 El Cajon CA 9740 PACIFIC BELL 732      

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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