Local Calling Guide

Area code/prefix search

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

NXX: 498

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
815-498 A Somonauk IL SMNKILXARS0  1015 FRONTIER NORTH, INC. - IL 358      
815-498 0 Somonauk IL   073H TELNYX LLC 358   2020-07-20   
815-498 1 Somonauk IL   1015 FRONTIER NORTH, INC. - IL 358      
815-498 2 Somonauk IL   1015 FRONTIER NORTH, INC. - IL 358      
815-498 3 Somonauk IL   1015 FRONTIER NORTH, INC. - IL 358      
815-498 4 Somonauk IL   1015 FRONTIER NORTH, INC. - IL 358      
815-498 5 Somonauk IL   318J COMCAST IP PHONE, LLC 358   2023-03-13   
815-498 6 Somonauk IL   318J COMCAST IP PHONE, LLC 358   2005-10-07   
815-498 7 Somonauk IL   508J CENTURYLINK COMMUNICATIONS, LLC 358   2015-06-25   
815-498 8 Somonauk IL   460K FIRST COMMUNICATIONS, LLC 358   2004-02-07   
815-498 9 Somonauk IL   1015 FRONTIER NORTH, INC. - IL 358      

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

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