Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Dalton City, IL

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
217-874 A DTCYILXCRS2  1015 FRONTIER NORTH, INC. - IL 374      
217-874 0   224C ONVOY, LLC 374   2019-07-27   
217-874 1   495J STRATUS NETWORKS 374   2020-11-13   
217-874 2   1015 FRONTIER NORTH, INC. - IL 374      
217-874 3   318J COMCAST IP PHONE, LLC 374   2006-08-09   
217-874 4   624H ONVOY SPECTRUM, LLC 374   2024-05-24   
217-874 5   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 374   2017-10-15   
217-874 6   224C ONVOY, LLC 374   2019-07-27   
217-874 7   224C ONVOY, LLC 374   2018-07-30   
217-874 9   073H TELNYX LLC 374   2023-11-16   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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