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: LSANCA11DS2

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
213-251 A Los Angeles: DA 10 CA 9740 PACIFIC BELL 730      
213-252 A Los Angeles: DA 10 CA 9740 PACIFIC BELL 730      
213-365 A Los Angeles: DA 10 CA 9740 PACIFIC BELL 730      
213-380 A Los Angeles: DA 10 CA 9740 PACIFIC BELL 730      
213-383 A Los Angeles: DA 10 CA 9740 PACIFIC BELL 730      
213-385 A Los Angeles: DA 10 CA 9740 PACIFIC BELL 730      
213-386 A Los Angeles: DA 10 CA 9740 PACIFIC BELL 730      
213-480 A Los Angeles: DA 10 CA 9740 PACIFIC BELL 730      
213-487 A Los Angeles: DA 10 CA 9740 PACIFIC BELL 730      
213-736 A Los Angeles: DA 10 CA 9740 PACIFIC BELL 730      
213-908 A Los Angeles: DA 10 CA 9740 PACIFIC BELL 730      
213-908 0 Los Angeles: DA 10 CA 9740 PACIFIC BELL 730      

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

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