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: IRVNCA12DS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
949-341 A Irvine CA 9740 PACIFIC BELL 730      
949-450 A Irvine CA 9740 PACIFIC BELL 730      
949-453 A Irvine CA 9740 PACIFIC BELL 730      
949-585 A Irvine CA 9740 PACIFIC BELL 730      
949-727 A Irvine CA 9740 PACIFIC BELL 730      
949-753 A Irvine CA 9740 PACIFIC BELL 730      
949-754 A Irvine CA 9740 PACIFIC BELL 730      
949-783 A Irvine CA 9740 PACIFIC BELL 730      
949-788 A Irvine CA 9740 PACIFIC BELL 730      
949-789 A Irvine CA 9740 PACIFIC BELL 730      
949-790 A Irvine CA 9740 PACIFIC BELL 730      
949-923 A Irvine CA 9740 PACIFIC BELL 730      
949-932 A Irvine CA 9740 PACIFIC BELL 730      

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

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