Local Calling Guide

Area code/prefix search

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Basco, IL

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
217-743 A BASCILXCRS0  1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 977      
217-743 0   1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 977      
217-743 1   1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 977      
217-743 2   224C ONVOY, LLC 977   2020-03-13   
217-743 3   495J STRATUS NETWORKS 977   2021-02-28   
217-743 4   508J CENTURYLINK COMMUNICATIONS, LLC 977   2014-08-09   
217-743 5   1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 977      
217-743 6   1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 977      
217-743 7   1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 977      
217-743 8   1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 977      
217-743 9   1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 977      
447-437 A MCMBILXDX9X  224C ONVOY, LLC 977      
447-437 0   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 977   2021-06-13   
447-437 3   624H ONVOY SPECTRUM, LLC 977   2023-07-29   
447-437 4   224C ONVOY, LLC 977   2023-01-07   
447-437 7   224C ONVOY, LLC 977   2021-07-05   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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