Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Oak Run, CA

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
530-449 A CHICCA017MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 724      
530-449 7 CHICCA017MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 724   2017-10-06   
530-449 9   145J TERRA NOVA TELECOM INC. 724   2025-05-15   
530-472 A OKRNCAXFDS0  2342 CITIZENS TELECOM DBA FRONTIER COMM OF TOULUMNE 724      

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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