Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Ina, IL

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
618-437 A INA ILXERS0  1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 520      
618-437 0   1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 520      
618-437 1   073H TELNYX LLC 520   2020-07-11   
618-437 2   224C ONVOY, LLC 520   2021-02-26   
618-437 3   508J CENTURYLINK COMMUNICATIONS, LLC 520   2016-02-11   
618-437 4   224C ONVOY, LLC 520   2018-08-20   
618-437 5   1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 520      
618-437 6   984E BANDWIDTH.COM CLEC, LLC - IL 520   2019-12-09   
618-437 7   224C ONVOY, LLC 520   2019-07-29   
618-437 8   224C ONVOY, LLC 520   2019-07-29   
618-437 9   1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 520      
730-212 A STLSMOWQDS2  224C ONVOY, LLC 520      
730-212 0   624H ONVOY SPECTRUM, LLC 520   2025-01-04   
730-212 1   145J TERRA NOVA TELECOM INC. 520   2025-06-01   
730-212 2   224C ONVOY, LLC 520   2023-11-12   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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