Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 618 [Rate centres in NPA 618] [Dial plan for NPA 618]

NXX: 885

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
618-885 A Dow IL DOW ILXERS0  1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 520      
618-885 0 Dow IL   073H TELNYX LLC 520   2020-07-06   
618-885 1 Dow IL   1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 520      
618-885 2 Dow IL   1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 520      
618-885 3 Dow IL   224C ONVOY, LLC 520   2022-12-08   
618-885 4 Dow IL   145J TERRA NOVA TELECOM INC. 520   2025-07-06   
618-885 5 Dow IL   1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 520      
618-885 8 Dow IL   224C ONVOY, LLC 520   2023-09-18   
618-885 9 Dow IL   1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 520      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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