Local Calling Guide

Area code/prefix search

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Sorento, IL

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
217-272 A SRNTILXCRS0  1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 976      
217-272 0 SRNTILXCRS0  1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 976      
217-272 1 SRNTILXCRS0  1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 976      
217-272 2   145J TERRA NOVA TELECOM INC. 976   2025-08-02   
217-272 4 SRNTILXCRS0  1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 976      
217-272 9 SRNTILXCRS0  1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 976      

Last updated: Tue, 16 Jun 2026 00:09:45 UTC

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