Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 618 [Rate centres in NPA 618] [Dial plan for NPA 618]

NXX: 368

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
618-368 A Hardin IL BLVLILAJ3MD  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 520      
618-368 0 Hardin IL   073H TELNYX LLC 520   2023-04-21   
618-368 1 Hardin IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 520      
618-368 2 Hardin IL   984E BANDWIDTH.COM CLEC, LLC - IL 520   2019-05-24   
618-368 3 Hardin IL   224C ONVOY, LLC 520   2018-07-29   
618-368 4 Hardin IL   224C ONVOY, LLC 520   2019-07-29   
618-368 5 Hardin IL   224C ONVOY, LLC 520   2019-07-29   
618-368 6 Hardin IL   984E BANDWIDTH.COM CLEC, LLC - IL 520   2018-06-01   
618-368 7 Hardin IL   508J CENTURYLINK COMMUNICATIONS, LLC 520   2016-01-21   
618-368 8 Hardin IL   073H TELNYX LLC 520   2020-07-09   
618-368 9 Hardin IL   495J STRATUS NETWORKS 520   2020-11-22   

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

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