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: LSANCA14DS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
323-231 A Los Angeles: DA 08 CA 9740 PACIFIC BELL 730      
323-232 A Los Angeles: DA 08 CA 9740 PACIFIC BELL 730      
323-233 A Los Angeles: DA 08 CA 9740 PACIFIC BELL 730      
323-234 A Los Angeles: DA 08 CA 9740 PACIFIC BELL 730      
323-235 A Los Angeles: DA 08 CA 9740 PACIFIC BELL 730      
323-238 A Los Angeles: DA 08 CA 9740 PACIFIC BELL 730      
323-521 A Los Angeles: DA 08 CA 9740 PACIFIC BELL 730      
323-846 A Los Angeles: DA 08 CA 9740 PACIFIC BELL 730      
323-898 A Los Angeles: DA 14 CA 9740 PACIFIC BELL 730      

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

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