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: 385

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
309-385 A Princeville IL PRNVILXDRS0  1015 FRONTIER NORTH, INC. - IL 368      
309-385 0 Princeville IL   846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 368   2010-03-15   
309-385 1 Princeville IL   1015 FRONTIER NORTH, INC. - IL 368      
309-385 2 Princeville IL   1015 FRONTIER NORTH, INC. - IL 368      
309-385 3 Princeville IL   495J STRATUS NETWORKS 368   2020-08-03   
309-385 4 Princeville IL   1015 FRONTIER NORTH, INC. - IL 368      
309-385 5 Princeville IL   145J TERRA NOVA TELECOM INC. 368   2025-06-12   
309-385 6 Princeville IL   624H ONVOY SPECTRUM, LLC 368   2024-05-13   
309-385 8 Princeville IL   224C ONVOY, LLC 368   2019-07-15   
309-385 9 Princeville IL   224C ONVOY, LLC 368   2019-07-15   

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

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