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: SNBRCAXK88E

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
909-252 A San Bernardino CA 2319 FRONTIER CALIFORNIA INC. 730      
909-252 5 San Bernardino CA 2319 FRONTIER CALIFORNIA INC. 730   2008-03-20   
909-381 A San Bernardino CA 2319 FRONTIER CALIFORNIA INC. 730      
909-383 A San Bernardino CA 2319 FRONTIER CALIFORNIA INC. 730      
909-384 A San Bernardino CA 2319 FRONTIER CALIFORNIA INC. 730      
909-384 0 San Bernardino CA 2319 FRONTIER CALIFORNIA INC. 730      
909-384 1 San Bernardino CA 2319 FRONTIER CALIFORNIA INC. 730      
909-384 4 San Bernardino CA 2319 FRONTIER CALIFORNIA INC. 730      
909-384 5 San Bernardino CA 2319 FRONTIER CALIFORNIA INC. 730      
909-384 7 San Bernardino CA 2319 FRONTIER CALIFORNIA INC. 730      
909-384 8 San Bernardino CA 2319 FRONTIER CALIFORNIA INC. 730      
909-384 9 San Bernardino CA 2319 FRONTIER CALIFORNIA INC. 730      
909-386 A San Bernardino CA 2319 FRONTIER CALIFORNIA INC. 730      
909-387 A San Bernardino CA 2319 FRONTIER CALIFORNIA INC. 730      
909-388 A San Bernardino CA 2319 FRONTIER CALIFORNIA INC. 730      
909-501 A San Bernardino CA 2319 FRONTIER CALIFORNIA INC. 730      
909-501 0 San Bernardino CA 2319 FRONTIER CALIFORNIA INC. 730   2015-10-04   
909-884 A San Bernardino CA 2319 FRONTIER CALIFORNIA INC. 730      
909-885 A San Bernardino CA 2319 FRONTIER CALIFORNIA INC. 730      
909-888 A San Bernardino CA 2319 FRONTIER CALIFORNIA INC. 730      
909-889 A San Bernardino CA 2319 FRONTIER CALIFORNIA INC. 730      
909-891 A San Bernardino CA 2319 FRONTIER CALIFORNIA INC. 730      
909-891 1 San Bernardino CA 2319 FRONTIER CALIFORNIA INC. 730      
909-891 2 San Bernardino CA 2319 FRONTIER CALIFORNIA INC. 730      
909-891 3 San Bernardino CA 2319 FRONTIER CALIFORNIA INC. 730      
909-891 5 San Bernardino CA 2319 FRONTIER CALIFORNIA INC. 730      
909-891 6 San Bernardino CA 2319 FRONTIER CALIFORNIA INC. 730      
909-891 8 San Bernardino CA 2319 FRONTIER CALIFORNIA INC. 730      
909-891 9 San Bernardino CA 2319 FRONTIER CALIFORNIA INC. 730      

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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