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: 443

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
309-443 A Low Point IL WSBNILXDRS0  1015 FRONTIER NORTH, INC. - IL 368      
309-443 0 Low Point IL   145J TERRA NOVA TELECOM INC. 368   2026-02-06   
309-443 1 Low Point IL   145J TERRA NOVA TELECOM INC. 368   2025-06-06   
309-443 2 Low Point IL   984E BANDWIDTH.COM CLEC, LLC - IL 368   2020-02-23   
309-443 3 Low Point IL   224C ONVOY, LLC 368   2018-08-02   
309-443 4 Low Point IL   224C ONVOY, LLC 368   2021-04-24   
309-443 5 Low Point IL   1015 FRONTIER NORTH, INC. - IL 368      
309-443 8 Low Point IL   495J STRATUS NETWORKS 368   2020-08-02   
309-443 9 Low Point IL   1015 FRONTIER NORTH, INC. - IL 368      

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

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