Local Calling Guide

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

NXX: 675

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
815-675 A Spring Grove IL SPGVILXARS0  1015 FRONTIER NORTH, INC. - IL 358      
815-675 0 Spring Grove IL   1015 FRONTIER NORTH, INC. - IL 358      
815-675 1 Spring Grove IL   1015 FRONTIER NORTH, INC. - IL 358      
815-675 2 Spring Grove IL   1015 FRONTIER NORTH, INC. - IL 358      
815-675 3 Spring Grove IL   1015 FRONTIER NORTH, INC. - IL 358      
815-675 4 Spring Grove IL   1015 FRONTIER NORTH, INC. - IL 358      
815-675 5 Spring Grove IL   593K MCC TELEPHONY LLC 358   2005-07-15   
815-675 6 Spring Grove IL   1015 FRONTIER NORTH, INC. - IL 358      
815-675 7 Spring Grove IL   1015 FRONTIER NORTH, INC. - IL 358      
815-675 9 Spring Grove IL   1015 FRONTIER NORTH, INC. - IL 358      

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

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