Local Calling Guide

Area code/prefix search

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New Douglas, IL

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
217-456 A NWDGILXCRS0  1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 976      
217-456 0 NWDGILXCRS0  1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 976      
217-456 1 NWDGILXCRS0  1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 976      
217-456 2 NWDGILXCRS0  1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 976      
217-456 4 MTONILXC1MD  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 976   2022-04-14   
217-456 6 NWDGILXCRS0  1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 976      
217-456 7 NWDGILXCRS0  1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 976      
217-456 8 NWDGILXCRS0  1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 976      
217-456 9 NWDGILXCRS0  1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 976      

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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