Local Calling Guide

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

NXX: 728

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
815-728 A Wonder Lake IL WNLKILXADS0  1015 FRONTIER NORTH, INC. - IL 358      
815-728 0 Wonder Lake IL   1015 FRONTIER NORTH, INC. - IL 358      
815-728 1 Wonder Lake IL   1015 FRONTIER NORTH, INC. - IL 358      
815-728 2 Wonder Lake IL   1015 FRONTIER NORTH, INC. - IL 358      
815-728 3 Wonder Lake IL   593K MCC TELEPHONY LLC 358   2010-06-13   
815-728 4 Wonder Lake IL   1015 FRONTIER NORTH, INC. - IL 358      
815-728 7 Wonder Lake IL   318J COMCAST IP PHONE, LLC 358   2005-07-01   
815-728 8 Wonder Lake IL   1015 FRONTIER NORTH, INC. - IL 358      
815-728 9 Wonder Lake IL   1015 FRONTIER NORTH, INC. - IL 358      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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