Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Switch: UPLDCAXF98G

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
909-579 A Upland CA 2319 FRONTIER CALIFORNIA INC. 730      
909-608 A Upland CA 2319 FRONTIER CALIFORNIA INC. 730      
909-920 A Upland CA 2319 FRONTIER CALIFORNIA INC. 730      
909-931 A Upland CA 2319 FRONTIER CALIFORNIA INC. 730      
909-932 A Upland CA 2319 FRONTIER CALIFORNIA INC. 730      
909-946 A Upland CA 2319 FRONTIER CALIFORNIA INC. 730      
909-949 A Upland CA 2319 FRONTIER CALIFORNIA INC. 730      
909-981 A Upland CA 2319 FRONTIER CALIFORNIA INC. 730      
909-982 A Upland CA 2319 FRONTIER CALIFORNIA INC. 730      
909-985 A Upland CA 2319 FRONTIER CALIFORNIA INC. 730      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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