Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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St Elmo, IL

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
618-461 A CENLILCEGMD  593K MCC TELEPHONY LLC 520      
618-461 0 STLSMOWQ8MD  073H TELNYX LLC 520   2020-07-20   
618-461 1 CENLILCEGMD  593K MCC TELEPHONY LLC 520   2010-06-18   
618-461 4 STLSMOWQDS2  224C ONVOY, LLC 520   2018-07-29   
618-461 5 STLSMOWQDS2  224C ONVOY, LLC 520   2019-07-29   
618-461 6 STLSMOWQDS2  224C ONVOY, LLC 520   2019-07-29   
618-461 7 COVLILCQXEX  508J CENTURYLINK COMMUNICATIONS, LLC 520   2016-01-23   
618-461 8 COVLILCQXMX  495J STRATUS NETWORKS 520   2020-11-22   
618-461 9 STLSMO05XMX  624H ONVOY SPECTRUM, LLC 520   2025-01-04   
618-510 A CENLILCEGMD  593K MCC TELEPHONY LLC 520      
618-510 0   145J TERRA NOVA TELECOM INC. 520   2025-07-06   
618-510 9 COVLILCQXIX  984E BANDWIDTH.COM CLEC, LLC - IL 520   2020-04-13   
618-829 A STEMILXERS0  1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 520      

Last updated: Sat, 21 Mar 2026 23:53:39 UTC

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