Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
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Switch: NWDGILXCRS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
217-456 A New Douglas IL 1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 976      
217-456 0 New Douglas IL 1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 976      
217-456 1 New Douglas IL 1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 976      
217-456 2 New Douglas IL 1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 976      
217-456 6 New Douglas IL 1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 976      
217-456 7 New Douglas IL 1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 976      
217-456 8 New Douglas IL 1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 976      
217-456 9 New Douglas IL 1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 976      

Last updated: Tue, 04 May 2021 15:04:27 UTC

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