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: CCMNCAXFDS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
909-476 A Upland CA 2319 FRONTIER CALIFORNIA INC. 730      
909-481 A Upland CA 2319 FRONTIER CALIFORNIA INC. 730      
909-484 A Upland CA 2319 FRONTIER CALIFORNIA INC. 730      
909-581 A Upland CA 2319 FRONTIER CALIFORNIA INC. 730      
909-581 0 Upland CA 2319 FRONTIER CALIFORNIA INC. 730      
909-581 1 Upland CA 2319 FRONTIER CALIFORNIA INC. 730      
909-581 3 Upland CA 2319 FRONTIER CALIFORNIA INC. 730      
909-758 A Upland CA 2319 FRONTIER CALIFORNIA INC. 730      
909-758 9 Upland CA 2319 FRONTIER CALIFORNIA INC. 730      
909-980 A Upland CA 2319 FRONTIER CALIFORNIA INC. 730      
909-987 A Upland CA 2319 FRONTIER CALIFORNIA INC. 730      

Last updated: Sat, 15 Nov 2025 03:38:44 UTC

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