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: NIOTILXCRS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
217-448 A Niota IL 1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 977      
217-448 0 Niota IL 1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 977      
217-448 1 Niota IL 1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 977      
217-448 4 Niota IL 1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 977      
217-448 5 Niota IL 1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 977      
217-448 6 Niota IL 1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 977      
217-448 7 Niota IL 1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 977      
217-448 8 Niota IL 1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 977      
217-448 9 Niota IL 1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 977      

Last updated: Mon, 15 Sep 2025 02:24:40 UTC

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