Local Calling Guide

Area code/prefix search

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

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
217-368 A GNFDILXCRS0  1015 FRONTIER NORTH, INC. - IL 376      
217-368 0   073H TELNYX LLC 376   2022-08-12   
217-368 2   1015 FRONTIER NORTH, INC. - IL 376      
217-368 3   1015 FRONTIER NORTH, INC. - IL 376      
217-368 5   624H ONVOY SPECTRUM, LLC 376   2023-07-07   
217-368 6   224C ONVOY, LLC 376   2020-04-19   
217-807 A JCVLILAA0MD  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 376      
217-807 4   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 376      
217-807 7   224C ONVOY, LLC 376   2021-02-26   
217-807 8   224C ONVOY, LLC 376   2020-09-05   

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

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