Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Chester, IL

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
618-615 A CRDLILXEXRX  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 362      
618-615 0   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 362      
618-615 1   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 362   2003-02-08   
618-615 2   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 362   2003-09-20   
618-615 3   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 362   2003-09-20   
618-615 4   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 362   2004-07-02   
618-615 5   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 362   2004-09-10   
618-615 6   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 362   2005-09-10   
618-615 7   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 362   2006-05-14   
618-615 8   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 362   2006-06-11   
618-615 9   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 362      
618-826 A CHESILXEDS0  1015 FRONTIER NORTH, INC. - IL 362      
618-826 0   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 362   2013-03-07   
618-826 1   1015 FRONTIER NORTH, INC. - IL 362      
618-826 2   1015 FRONTIER NORTH, INC. - IL 362      
618-826 3   1015 FRONTIER NORTH, INC. - IL 362      
618-826 4   1015 FRONTIER NORTH, INC. - IL 362      
618-826 5   1015 FRONTIER NORTH, INC. - IL 362      
618-826 6   9915 DELTA COMMS, LLC DBA CLEARWAVE COMMUNICATIONS - IL 362   2004-05-03   
618-826 7   145J TERRA NOVA TELECOM INC. 362   2025-08-01   
618-861 A CRDLILAB0MD  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 362      
618-861 0   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 362   2019-07-19   
618-861 5   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 362   2006-03-10   
618-861 6   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 362   2007-10-13   

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

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