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.

OCN: 2319 FRONTIER CALIFORNIA INC.

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
909-942 8 Upland CA   730    
909-944 A Upland CA CCMNCAXF98K  730    
909-945 A Upland CA CCMNCAXF98K  730    
909-945 0 Upland CA   730    
909-945 1 Upland CA   730    
909-945 2 Upland CA   730    
909-945 3 Upland CA   730    
909-945 4 Upland CA   730    
909-945 5 Upland CA   730    
909-945 6 Upland CA   730    
909-945 9 Upland CA   730    
909-946 A Upland CA UPLDCAXF98G  730    
909-947 A Ontario CA ONTRCAXG94L  730    
909-948 A Upland CA CCMNCAXF98K  730    
909-949 A Upland CA UPLDCAXF98G  730    
909-971 A Claremont-San Dimas CA SNDMCAXF59C  730    
909-971 0 Claremont-San Dimas CA   730    
909-971 1 Claremont-San Dimas CA   730    
909-971 2 Claremont-San Dimas CA   730    
909-971 5 Claremont-San Dimas CA   730    
909-971 8 Claremont-San Dimas CA   730    
909-971 9 Claremont-San Dimas CA   730    
909-974 A Ontario CA ONTRCAXMDS0  730    
909-974 0 Ontario CA   730    
909-974 1 Ontario CA   730    
909-974 2 Ontario CA   730    
909-974 3 Ontario CA   730    
909-974 4 Ontario CA   730    
909-974 5 Ontario CA   730    
909-974 6 Ontario CA   730    
909-974 7 Ontario CA   730    
909-975 A Ontario CA ONTRCAXMDS0  730    
909-975 3 Ontario CA   730    
909-975 4 Ontario CA   730    
909-975 5 Ontario CA   730    
909-975 6 Ontario CA   730    
909-975 7 Ontario CA   730    
909-979 A Diamond Bar CA WLNTCAXFDS0  730    
909-979 5 Diamond Bar CA   730    
909-979 6 Diamond Bar CA   730    
909-980 A Upland CA CCMNCAXFDS1  730    
909-981 A Upland CA UPLDCAXF98G  730    
909-982 A Upland CA UPLDCAXF98G  730    
909-983 A Ontario CA ONTRCAXF98K  730    
909-984 A Ontario CA ONTRCAXF98K  730    
909-985 A Upland CA UPLDCAXF98G  730    
909-986 A Ontario CA ONTRCAXF98K  730    
909-987 A Upland CA CCMNCAXFDS1  730    
909-988 A Ontario CA ONTRCAXF98K  730    
909-989 A Upland CA CCMNCAXF98K  730    

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Last updated: Sat, 10 Nov 2018 02:05:23 UTC

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