Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 309 [Rate centres in NPA 309] [Dial plan for NPA 309]

NXX: 739

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
309-739 A Secor IL PEORILTCDS0  5800 ITV-3, LLC D/B/A I3 BROADBAND 368      
309-739 1 Secor IL   846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 368   2010-03-15   
309-739 2 Secor IL   984E BANDWIDTH.COM CLEC, LLC - IL 368   2018-12-02   
309-739 3 Secor IL   224C ONVOY, LLC 368   2021-02-26   
309-739 7 Secor IL   490J DISH WIRELESS, LLC 368   2023-11-13   
309-739 8 Secor IL   495J STRATUS NETWORKS 368   2020-08-03   

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

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