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
909-646 8 Etiwanda CA ETWNCAXF89L  730   2004-06-13   
909-646 9 Etiwanda CA ETWNCAXF89L  730   2003-10-07   
909-652 6 Upland CA CCMNCAXF98K  730   2006-06-01   
909-652 7 Upland CA CCMNCAXF98K  730   2006-06-01   
909-652 8 Upland CA CCMNCAXF98K  730   2006-06-01   
909-658 A San Bernardino CA SNBRCAXLDS0  730      
909-658 0 San Bernardino CA SNBRCAXLDS0  730   2007-03-08   
909-658 1 San Bernardino CA SNBRCAXLDS0  730   2007-03-08   
909-658 2 San Bernardino CA SNBRCAXLDS0  730   2007-03-08   
909-658 3 San Bernardino CA SNBRCAXLDS0  730   2007-03-08   
909-673 A Ontario CA ONTRCAXG94L  730      
909-703 6 Chino CA CHNOCAXF62J  730   2010-04-01   
909-748 A Redlands CA RDLDCAXF79K  730      
909-748 0 Redlands CA RDLDCAXF79K  730      
909-748 2 Redlands CA RDLDCAXF79K  730      
909-748 3 Redlands CA RDLDCAXF79K  730      
909-748 4 Redlands CA RDLDCAXF79K  730      
909-748 6 Redlands CA RDLDCAXF79K  730      
909-748 7 Redlands CA RDLDCAXF79K  730      
909-748 8 Redlands CA RDLDCAXF79K  730   2005-09-12   
909-758 A Upland CA CCMNCAXFDS1  730      
909-758 9 Upland CA CCMNCAXFDS1  730      
909-773 A Ontario CA ONTRCAXG94L  730      
909-773 0 Ontario CA ONTRCAXG94L  730      
909-773 1 Ontario CA ONTRCAXG94L  730      
909-773 3 Ontario CA ONTRCAXG94L  730      
909-773 4 Ontario CA ONTRCAXG94L  730      
909-773 5 Ontario CA ONTRCAXG94L  730      
909-773 6 Ontario CA ONTRCAXG94L  730      
909-773 7 Ontario CA ONTRCAXG94L  730      
909-773 9 Ontario CA ONTRCAXG94L  730      
909-790 A Calimesa CA YUCPCAXF79M  730      
909-792 A Redlands CA RDLDCAXF79K  730      
909-793 A Redlands CA RDLDCAXF79K  730      
909-794 A Mentone CA MENTCAXF79X  730      
909-795 A Calimesa CA CLMSCAXF79G  730      
909-796 A Redlands CA LMLNCAXF79L  730      
909-797 A Calimesa CA YUCPCAXF79M  730      
909-798 A Redlands CA RDLDCAXF79K  730      
909-799 A Redlands CA LMLNCAXF79L  730      
909-803 2 Etiwanda CA ETWNCAXF89L  730   2004-12-31   
909-803 5 Etiwanda CA ETWNCAXF89L  730   2005-06-12   
909-809 3 Redlands CA RDLDCAXF79K  730   2007-11-29   
909-839 A Diamond Bar CA WLNTCAXFDS0  730      
909-839 0 Diamond Bar CA WLNTCAXFDS0  730      
909-839 1 Diamond Bar CA WLNTCAXFDS0  730      
909-839 2 Diamond Bar CA WLNTCAXFDS0  730      
909-839 7 Diamond Bar CA WLNTCAXFDS0  730      
909-839 8 Diamond Bar CA WLNTCAXFDS0  730      
909-860 A Diamond Bar CA DMBRCAXF86M  730      

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

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