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: 492

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
309-492 A Campgrove IL PEORILTCDS0  5800 ITV-3, LLC D/B/A I3 BROADBAND 368      
309-492 2 Campgrove IL   145J TERRA NOVA TELECOM INC. 368   2026-01-04   
309-492 3 Campgrove IL   224C ONVOY, LLC 368   2021-02-12   
309-492 4 Campgrove IL   224C ONVOY, LLC 368   2020-06-15   
309-492 5 Campgrove IL   224C ONVOY, LLC 368   2021-04-03   
309-492 7 Campgrove IL   508J CENTURYLINK COMMUNICATIONS, LLC 368   2016-08-02   
309-492 9 Campgrove IL   495J STRATUS NETWORKS 368   2020-08-03   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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