Local Calling Guide

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

NXX: 444

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
309-444 A Washington IL WASHILXDRS3  1015 FRONTIER NORTH, INC. - IL 368      
309-444 0 Washington IL   6529 T-MOBILE USA, INC. 368   2007-01-17   
309-444 1 Washington IL   1015 FRONTIER NORTH, INC. - IL 368      
309-444 2 Washington IL   1015 FRONTIER NORTH, INC. - IL 368      
309-444 3 Washington IL   1015 FRONTIER NORTH, INC. - IL 368      
309-444 4 Washington IL   1015 FRONTIER NORTH, INC. - IL 368      
309-444 5 Washington IL   1015 FRONTIER NORTH, INC. - IL 368      
309-444 6 Washington IL   6529 T-MOBILE USA, INC. 368   2004-05-12   
309-444 7 Washington IL   1015 FRONTIER NORTH, INC. - IL 368      
309-444 8 Washington IL   1015 FRONTIER NORTH, INC. - IL 368      
309-444 9 Washington IL   1015 FRONTIER NORTH, INC. - IL 368      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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