Local Calling Guide

Area code/prefix search

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Hillsboro, IL

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
217-532 A HLBOILXCRS0  1037 ILLINOIS CONSOLIDATED TEL. CO. 976      
217-608 A MTONILXC1MD  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 976      
217-608 0 TYVLIL35DS0  197H COMPUTER TECHNIQUES, INC. - IL 976   2017-12-08   
217-608 1 MTONILXCX7X  073H TELNYX LLC 976   2022-08-19   
217-608 2   145J TERRA NOVA TELECOM INC. 976   2025-08-02   
217-608 3 TYVLILXCAMD  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 976   2017-04-28   
217-608 4 MTONILXC1MD  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 976   2017-09-14   
217-608 5 TYVLILXCYMD  7196 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 976   2018-10-02   

Last updated: Tue, 07 Oct 2025 16:47:53 UTC

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