Local Calling Guide

Area code/prefix search

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Mound City, IL

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
618-742 A OLMSILOMRS0  9329 ILLINOIS BELL TEL CO 362      
618-742 0   846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 362   2010-05-09   
618-742 1   073H TELNYX LLC 362   2020-07-16   
618-742 2   224C ONVOY, LLC 362   2019-09-07   
618-742 3   224C ONVOY, LLC 362   2019-09-07   
618-742 5   516C AT&T CORP. 362   2025-10-06   
618-742 6   9329 ILLINOIS BELL TEL CO 362      
618-742 7   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 362   2025-10-20   
618-742 8   145J TERRA NOVA TELECOM INC. 362   2025-07-31   
618-742 9   9915 DELTA COMMS, LLC DBA CLEARWAVE COMMUNICATIONS - IL 362   2003-02-05   
618-748 A MDCYILAARS0  9329 ILLINOIS BELL TEL CO 362      
618-748 0   495J STRATUS NETWORKS 362   2020-12-19   
618-748 2   624H ONVOY SPECTRUM, LLC 362   2023-07-05   
618-748 6   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 362   2013-09-02   
618-748 7   224C ONVOY, LLC 362   2018-10-01   
618-748 9   9329 ILLINOIS BELL TEL CO 362      

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

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