Local Calling Guide

Area code/prefix search

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Thompsonville, IL

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
618-627 A TPVLILXERS0  1015 FRONTIER NORTH, INC. - IL 362      
618-627 0   073H TELNYX LLC 362   2020-07-20   
618-627 1   624H ONVOY SPECTRUM, LLC 362   2023-06-30   
618-627 2   1015 FRONTIER NORTH, INC. - IL 362      
618-627 3   9915 DELTA COMMS, LLC DBA CLEARWAVE COMMUNICATIONS - IL 362   2003-02-03   
618-627 4   1015 FRONTIER NORTH, INC. - IL 362      
618-627 5   224C ONVOY, LLC 362   2019-09-08   
618-627 6   224C ONVOY, LLC 362   2018-10-01   
618-627 7   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 362   2005-02-14   
618-627 8   495J STRATUS NETWORKS 362   2020-12-19   
618-627 9   145J TERRA NOVA TELECOM INC. 362   2025-08-01   

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

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