Local Calling Guide

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Search area code/prefix (NPA/NXX)
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NPA: 618 [Rate centres in NPA 618] [Dial plan for NPA 618]

NXX: 476

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
618-476 A Millstadt IL MLSTILXERS0  1036 FRONTIER NORTH, INC. - IL 520      
618-476 0 Millstadt IL   224C ONVOY, LLC 520   2023-09-11   
618-476 1 Millstadt IL   1036 FRONTIER NORTH, INC. - IL 520      
618-476 2 Millstadt IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 520   2009-03-12   
618-476 3 Millstadt IL   1036 FRONTIER NORTH, INC. - IL 520      
618-476 5 Millstadt IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 520   2005-03-10   
618-476 6 Millstadt IL   792K CHARTER IP ENABLED SERVICES, LLC 520   2007-12-16   
618-476 7 Millstadt IL   1036 FRONTIER NORTH, INC. - IL 520      
618-476 8 Millstadt IL   984E BANDWIDTH.COM CLEC, LLC - IL 520   2020-04-19   
618-476 9 Millstadt IL   1036 FRONTIER NORTH, INC. - IL 520      

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

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