Local Calling Guide

Area code/prefix search

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

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
217-645 A LBRTILLBRS0  9329 ILLINOIS BELL TEL CO 376      
217-645 0   073H TELNYX LLC 376   2022-08-07   
217-645 1   224C ONVOY, LLC 376   2020-04-19   
217-645 2   224C ONVOY, LLC 376   2021-02-12   
217-645 3   9329 ILLINOIS BELL TEL CO 376      
217-645 4   224C ONVOY, LLC 376   2023-06-05   
217-645 5   224C ONVOY, LLC 376   2021-04-04   
217-645 6   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 376   2005-03-24   
217-645 7   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 376   2011-08-13   
217-645 8   7091 ADAMS TELSYSTEMS, INC. 376   2012-09-02   
217-645 9   939H COMMIO, LLC 376   2022-12-03   
447-271 A JCVLILXCDMD  224C ONVOY, LLC 376      
447-271 0   516C AT&T CORP. 376   2025-10-06   
447-271 2   224C ONVOY, LLC 376   2023-11-04   
447-271 3   624H ONVOY SPECTRUM, LLC 376   2024-04-27   

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

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