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.
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Switch: LSANCA08DS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
310-289 A Beverly Hills CA 9740 PACIFIC BELL 730      
310-358 A Beverly Hills CA 9740 PACIFIC BELL 730      
310-423 A Beverly Hills CA 9740 PACIFIC BELL 730      
310-652 A Beverly Hills CA 9740 PACIFIC BELL 730      
310-657 A Beverly Hills CA 9740 PACIFIC BELL 730      
310-854 A Beverly Hills CA 9740 PACIFIC BELL 730      
310-855 A Beverly Hills CA 9740 PACIFIC BELL 730      
310-967 A Beverly Hills CA 9740 PACIFIC BELL 730      
323-654 A Los Angeles: DA 14 CA 9740 PACIFIC BELL 730      
323-656 A Los Angeles: DA 14 CA 9740 PACIFIC BELL 730      
323-698 A Los Angeles: DA 14 CA 9740 PACIFIC BELL 730      
323-782 A Los Angeles: DA 13 CA 9740 PACIFIC BELL 730      
323-848 A Los Angeles: DA 14 CA 9740 PACIFIC BELL 730      
323-944 A Los Angeles: DA 13 CA 9740 PACIFIC BELL 730      
323-951 A Los Angeles: DA 13 CA 9740 PACIFIC BELL 730      
424-314 A Beverly Hills CA 9740 PACIFIC BELL 730      
424-315 A Beverly Hills CA 9740 PACIFIC BELL 730      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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