Local Calling Guide

Area code/prefix search

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Lyndon, IL

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
815-778 A LYNDILXADS0  1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 364      
815-897 A DIXNILXA0MD  846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 364      
815-897 1 DKLBILRS0MD  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 364   2022-02-24   
815-897 9 DIXNILXA0MD  846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 364   2010-04-15   

Last updated: Sat, 10 Oct 2026 15:24:20 UTC

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