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: 571

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
815-571 A Shannon IL DKLBILXAQMD  846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 364      
815-571 0 Shannon IL DIXNILXA3MD  073H TELNYX LLC 364   2020-07-20   
815-571 1 Shannon IL CHCGIL24XMD  495J STRATUS NETWORKS 364   2020-10-14   
815-571 2 Shannon IL DKLBILXAXEX  624H ONVOY SPECTRUM, LLC 364   2023-07-07   
815-571 4 Shannon IL DKLBILRS0MD  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 364   2022-04-17   
815-571 5 Shannon IL DIXNILXA4MD  224C ONVOY, LLC 364   2018-10-01   
815-571 7 Shannon IL DIXNILXA4MD  224C ONVOY, LLC 364   2021-04-03   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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