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: WLNTCAXFDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
909-444 A Diamond Bar CA 2319 FRONTIER CALIFORNIA INC. 730      
909-468 A Diamond Bar CA 2319 FRONTIER CALIFORNIA INC. 730      
909-480 A Claremont-San Dimas CA 2319 FRONTIER CALIFORNIA INC. 730      
909-480 0 Claremont-San Dimas CA 2319 FRONTIER CALIFORNIA INC. 730      
909-594 A Diamond Bar CA 2319 FRONTIER CALIFORNIA INC. 730      
909-595 A Diamond Bar CA 2319 FRONTIER CALIFORNIA INC. 730      
909-598 A Diamond Bar CA 2319 FRONTIER CALIFORNIA INC. 730      
909-614 A Chino CA 2319 FRONTIER CALIFORNIA INC. 730      
909-614 0 Chino CA 2319 FRONTIER CALIFORNIA INC. 730      
909-614 1 Chino CA 2319 FRONTIER CALIFORNIA INC. 730      
909-630 A Pomona CA 2319 FRONTIER CALIFORNIA INC. 730      
909-630 0 Pomona CA 2319 FRONTIER CALIFORNIA INC. 730      
909-630 7 Pomona CA 2319 FRONTIER CALIFORNIA INC. 730      
909-839 A Diamond Bar CA 2319 FRONTIER CALIFORNIA INC. 730      
909-839 0 Diamond Bar CA 2319 FRONTIER CALIFORNIA INC. 730      
909-839 1 Diamond Bar CA 2319 FRONTIER CALIFORNIA INC. 730      
909-839 2 Diamond Bar CA 2319 FRONTIER CALIFORNIA INC. 730      
909-839 7 Diamond Bar CA 2319 FRONTIER CALIFORNIA INC. 730      
909-839 8 Diamond Bar CA 2319 FRONTIER CALIFORNIA INC. 730      
909-869 A Diamond Bar CA 2319 FRONTIER CALIFORNIA INC. 730      
909-979 A Diamond Bar CA 2319 FRONTIER CALIFORNIA INC. 730      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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