Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 815 [Rate centres in NPA 815] [Dial plan for NPA 815]

NXX: 913

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
815-913 A Chadwick IL DIXNILXAEMD  508J CENTURYLINK COMMUNICATIONS, LLC 364      
815-913 0 Chadwick IL   073H TELNYX LLC 364   2020-06-26   
815-913 1 Chadwick IL   224C ONVOY, LLC 364   2018-10-01   
815-913 2 Chadwick IL   224C ONVOY, LLC 364   2019-09-07   
815-913 3 Chadwick IL   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 364   2017-10-08   
815-913 4 Chadwick IL   224C ONVOY, LLC 364   2021-04-03   
815-913 5 Chadwick IL   846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 364   2010-04-15   
815-913 6 Chadwick IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 364   2022-02-24   
815-913 7 Chadwick IL   508J CENTURYLINK COMMUNICATIONS, LLC 364   2014-08-08   
815-913 8 Chadwick IL   495J STRATUS NETWORKS 364   2020-10-14   
815-913 9 Chadwick IL   624H ONVOY SPECTRUM, LLC 364   2023-07-06   

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

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