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 Eff date Disc date Map
909-773 1 Ontario CA   730      
909-773 3 Ontario CA   730      
909-773 4 Ontario CA   730      
909-773 5 Ontario CA   730      
909-773 6 Ontario CA   730      
909-773 7 Ontario CA   730      
909-773 9 Ontario CA   730      
909-790 A Calimesa CA YUCPCAXF79M  730     map
909-792 A Redlands CA RDLDCAXF79K  730     map
909-793 A Redlands CA RDLDCAXF79K  730     map
909-794 A Mentone CA MENTCAXF79X  730     map
909-795 A Calimesa CA CLMSCAXF79G  730     map
909-796 A Redlands CA LMLNCAXF79L  730     map
909-797 A Calimesa CA YUCPCAXF79M  730     map
909-798 A Redlands CA RDLDCAXF79K  730     map
909-799 A Redlands CA LMLNCAXF79L  730     map
909-803 2 Etiwanda CA   730 2004-12-31     
909-803 5 Etiwanda CA   730 2005-06-12     
909-809 3 Redlands CA   730 2007-11-29     
909-839 A Diamond Bar CA WLNTCAXFDS0  730     map
909-839 0 Diamond Bar CA   730      
909-839 1 Diamond Bar CA   730      
909-839 2 Diamond Bar CA   730      
909-839 7 Diamond Bar CA   730      
909-839 8 Diamond Bar CA   730      
909-860 A Diamond Bar CA DMBRCAXF86M  730     map
909-861 A Diamond Bar CA DMBRCAXF86M  730     map
909-865 A Pomona CA POMNCAXF62E  730     map
909-868 A Pomona CA POMNCAXF62E  730     map
909-868 0 Pomona CA   730      
909-868 1 Pomona CA   730      
909-868 2 Pomona CA   730      
909-868 3 Pomona CA   730      
909-868 4 Pomona CA   730      
909-868 5 Pomona CA   730      
909-868 6 Pomona CA   730      
909-868 7 Pomona CA   730      
909-868 9 Pomona CA   730      
909-869 A Diamond Bar CA WLNTCAXFDS0  730     map
909-880 A Marshall CA MSCYCAXF88K  730     map
909-881 A Marshall CA SNBRCAXH88K  730     map
909-882 A Marshall CA SNBRCAXH88K  730     map
909-883 A Marshall CA SNBRCAXH88K  730     map
909-884 A San Bernardino CA SNBRCAXK88E  730     map
909-885 A San Bernardino CA SNBRCAXK88E  730     map
909-886 A Marshall CA SNBRCAXH88K  730     map
909-887 A Marshall CA MSCYCAXF88K  730     map
909-888 A San Bernardino CA SNBRCAXK88E  730     map
909-889 A San Bernardino CA SNBRCAXK88E  730     map
909-890 A San Bernardino CA SNBRCAXLDS0  730     map

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Last updated: Sun, 12 Nov 2017 02:06:07 UTC

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