Local Calling Guide

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

NXX: 284

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
309-284 A Morton IL MRTNILXDDS2  1015 FRONTIER NORTH, INC. - IL 368      
309-284 0 Morton IL   1015 FRONTIER NORTH, INC. - IL 368      
309-284 1 Morton IL   1015 FRONTIER NORTH, INC. - IL 368      
309-284 2 Morton IL   1015 FRONTIER NORTH, INC. - IL 368      
309-284 3 Morton IL   1015 FRONTIER NORTH, INC. - IL 368      
309-284 4 Morton IL   1015 FRONTIER NORTH, INC. - IL 368      
309-284 5 Morton IL   1015 FRONTIER NORTH, INC. - IL 368      
309-284 6 Morton IL   1015 FRONTIER NORTH, INC. - IL 368      
309-284 7 Morton IL   1015 FRONTIER NORTH, INC. - IL 368      
309-284 8 Morton IL   1015 FRONTIER NORTH, INC. - IL 368      
309-284 9 Morton IL   063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 368   2015-11-02   

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

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