Local Calling Guide

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NPA: 309 [Rate centres in NPA 309] [Dial plan for NPA 309]

NXX: 392

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
309-392 A Minier Armington IL MINRILXDRS0  1015 FRONTIER NORTH, INC. - IL 366      
309-392 1 Minier Armington IL   1015 FRONTIER NORTH, INC. - IL 366      
309-392 2 Minier Armington IL   1015 FRONTIER NORTH, INC. - IL 366      
309-392 3 Minier Armington IL   1015 FRONTIER NORTH, INC. - IL 366      
309-392 4 Minier Armington IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 366   2005-03-24   
309-392 5 Minier Armington IL   224C ONVOY, LLC 366   2020-05-21   
309-392 6 Minier Armington IL   224C ONVOY, LLC 366   2020-05-21   
309-392 7 Minier Armington IL   224C ONVOY, LLC 366   2020-05-21   
309-392 8 Minier Armington IL   495J STRATUS NETWORKS 366   2020-10-14   

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

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