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: ONTRCAXPXAY

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
909-502 A Corona CA 6967 33 WIRELESS INC. 730      
909-540 A Riverside CA 6967 33 WIRELESS INC. 730      
909-650 A San Bernardino CA 6967 33 WIRELESS INC. 730      
909-690 A San Bernardino CA 6967 33 WIRELESS INC. 730      
909-691 A Woodcrest CA 6967 33 WIRELESS INC. 730      
909-759 A Highland CA 6967 33 WIRELESS INC. 730      
909-842 A Ontario CA 6967 33 WIRELESS INC. 730      
909-934 A Ontario CA 6967 33 WIRELESS INC. 730      
949-256 A Saddleback Valley CA 6967 33 WIRELESS INC. 730      
949-944 A Irvine CA 6967 33 WIRELESS INC. 730      
951-262 A Hemet: Anza DA CA 252F WIDE VOICE, LLC - CA 730      
951-262 1 Hemet: Anza DA CA 252F WIDE VOICE, LLC - CA 730   2009-03-01   

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Last updated: Tue, 01 Sep 2026 00:40:05 UTC

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