Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Switch: LVRNCAXF59H

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
909-392 A Claremont-San Dimas CA 2319 FRONTIER CALIFORNIA INC. 730      
909-593 A Claremont-San Dimas CA 2319 FRONTIER CALIFORNIA INC. 730      
909-596 A Claremont-San Dimas CA 2319 FRONTIER CALIFORNIA INC. 730      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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