Local Calling Guide

Area code/prefix search

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

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
815-537 A PPTWILXADS0  1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 364      
815-924 A LNRKILXA3MD  443F AERO NORTH COMMUNICATIONS, INC. - IL 364      
815-989 A DKLBILXAQMD  846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 364      
815-989 0   073H TELNYX LLC 364   2020-07-19   
815-989 1   495J STRATUS NETWORKS 364   2020-12-20   
815-989 2   224C ONVOY, LLC 364   2019-09-07   
815-989 3   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 364   2022-04-17   
815-989 4   624H ONVOY SPECTRUM, LLC 364   2023-07-06   
815-989 5   224C ONVOY, LLC 364   2018-10-01   
815-989 6   846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 364   2010-04-15   
815-989 7   508J CENTURYLINK COMMUNICATIONS, LLC 364   2014-08-08   
815-989 8   259E YMAX COMMUNICATIONS CORP. - IL 364   2011-04-06   
815-989 9   224C ONVOY, LLC 364   2021-04-03   

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

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