Local Calling Guide

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NPA: 815 [Rate centres in NPA 815] [Dial plan for NPA 815]

NXX: 539

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
815-539 A Mendota IL MNDTILXADS0  1015 FRONTIER NORTH, INC. - IL 368      
815-539 1 Mendota IL   1015 FRONTIER NORTH, INC. - IL 368      
815-539 2 Mendota IL   1015 FRONTIER NORTH, INC. - IL 368      
815-539 3 Mendota IL   1015 FRONTIER NORTH, INC. - IL 368      
815-539 4 Mendota IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 368   2004-07-02   
815-539 5 Mendota IL   1015 FRONTIER NORTH, INC. - IL 368      
815-539 6 Mendota IL   1015 FRONTIER NORTH, INC. - IL 368      
815-539 7 Mendota IL   1015 FRONTIER NORTH, INC. - IL 368      
815-539 8 Mendota IL   318J COMCAST IP PHONE, LLC 368   2007-09-23   
815-539 9 Mendota IL   1015 FRONTIER NORTH, INC. - IL 368      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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