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: ONTRCAXMDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
909-390 A Ontario CA 2319 FRONTIER CALIFORNIA INC. 730      
909-605 A Ontario CA 2319 FRONTIER CALIFORNIA INC. 730      
909-605 0 Ontario CA 2319 FRONTIER CALIFORNIA INC. 730      
909-605 1 Ontario CA 2319 FRONTIER CALIFORNIA INC. 730      
909-605 2 Ontario CA 2319 FRONTIER CALIFORNIA INC. 730      
909-605 4 Ontario CA 2319 FRONTIER CALIFORNIA INC. 730      
909-605 5 Ontario CA 2319 FRONTIER CALIFORNIA INC. 730      
909-605 6 Ontario CA 2319 FRONTIER CALIFORNIA INC. 730      
909-605 7 Ontario CA 2319 FRONTIER CALIFORNIA INC. 730      
909-605 8 Ontario CA 2319 FRONTIER CALIFORNIA INC. 730      
909-605 9 Ontario CA 2319 FRONTIER CALIFORNIA INC. 730      
909-937 A Ontario CA 2319 FRONTIER CALIFORNIA INC. 730      
909-937 0 Ontario CA 2319 FRONTIER CALIFORNIA INC. 730      
909-937 1 Ontario CA 2319 FRONTIER CALIFORNIA INC. 730      
909-937 2 Ontario CA 2319 FRONTIER CALIFORNIA INC. 730      
909-937 3 Ontario CA 2319 FRONTIER CALIFORNIA INC. 730      
909-937 5 Ontario CA 2319 FRONTIER CALIFORNIA INC. 730      
909-937 6 Ontario CA 2319 FRONTIER CALIFORNIA INC. 730      
909-937 7 Ontario CA 2319 FRONTIER CALIFORNIA INC. 730      
909-937 8 Ontario CA 2319 FRONTIER CALIFORNIA INC. 730      
909-937 9 Ontario CA 2319 FRONTIER CALIFORNIA INC. 730      
909-974 A Ontario CA 2319 FRONTIER CALIFORNIA INC. 730      
909-974 0 Ontario CA 2319 FRONTIER CALIFORNIA INC. 730      
909-974 1 Ontario CA 2319 FRONTIER CALIFORNIA INC. 730      
909-974 2 Ontario CA 2319 FRONTIER CALIFORNIA INC. 730      
909-974 3 Ontario CA 2319 FRONTIER CALIFORNIA INC. 730      
909-974 4 Ontario CA 2319 FRONTIER CALIFORNIA INC. 730      
909-974 5 Ontario CA 2319 FRONTIER CALIFORNIA INC. 730      
909-974 6 Ontario CA 2319 FRONTIER CALIFORNIA INC. 730      
909-975 A Ontario CA 2319 FRONTIER CALIFORNIA INC. 730      
909-975 3 Ontario CA 2319 FRONTIER CALIFORNIA INC. 730      
909-975 4 Ontario CA 2319 FRONTIER CALIFORNIA INC. 730      
909-975 5 Ontario CA 2319 FRONTIER CALIFORNIA INC. 730      
909-975 6 Ontario CA 2319 FRONTIER CALIFORNIA INC. 730      
909-975 7 Ontario CA 2319 FRONTIER CALIFORNIA INC. 730      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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