Local Calling Guide

Area code/prefix search

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Alpine, CA

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
530-694 A WDFRCAXFRS1  863F FRONTIER COMMUNICATIONS OF THE SOUTHWEST INC. - CA 720      
530-694 0   145J TERRA NOVA TELECOM INC. 720   2025-05-15   
530-694 1   863F FRONTIER COMMUNICATIONS OF THE SOUTHWEST INC. - CA 720      
530-694 2   863F FRONTIER COMMUNICATIONS OF THE SOUTHWEST INC. - CA 720      
530-694 4   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 720   2005-07-10   
530-694 9   863F FRONTIER COMMUNICATIONS OF THE SOUTHWEST INC. - CA 720      

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

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