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: FNTACA11DS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
909-302 A Fontana CA 9740 PACIFIC BELL 730      
909-349 A Fontana CA 9740 PACIFIC BELL 730      
909-350 A Fontana CA 9740 PACIFIC BELL 730      
909-355 A Fontana CA 9740 PACIFIC BELL 730      
909-356 A Fontana CA 9740 PACIFIC BELL 730      
909-357 A Fontana CA 9740 PACIFIC BELL 730      
909-427 A Fontana CA 9740 PACIFIC BELL 730      
909-428 A Fontana CA 9740 PACIFIC BELL 730      
909-429 A Fontana CA 9740 PACIFIC BELL 730      
909-574 A Fontana CA 9740 PACIFIC BELL 730      
909-822 A Fontana CA 9740 PACIFIC BELL 730      
909-823 A Fontana CA 9740 PACIFIC BELL 730      
909-829 A Fontana CA 9740 PACIFIC BELL 730      
909-854 A Fontana CA 9740 PACIFIC BELL 730      

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

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