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: 228

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
618-228 A Aviston IL AVTNILAVRS0  9329 ILLINOIS BELL TEL CO 520      
618-228 0 Aviston IL   063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 520   2012-10-28   
618-228 1 Aviston IL   073H TELNYX LLC 520   2018-07-24   
618-228 2 Aviston IL   984E BANDWIDTH.COM CLEC, LLC - IL 520   2018-10-06   
618-228 3 Aviston IL   224C ONVOY, LLC 520   2019-09-07   
618-228 4 Aviston IL   224C ONVOY, LLC 520   2021-02-26   
618-228 5 Aviston IL   792K CHARTER IP ENABLED SERVICES, LLC 520   2005-05-19   
618-228 6 Aviston IL   508J CENTURYLINK COMMUNICATIONS, LLC 520   2014-07-17   
618-228 7 Aviston IL   9329 ILLINOIS BELL TEL CO 520      
618-228 8 Aviston IL   495J STRATUS NETWORKS 520   2020-12-18   
618-228 9 Aviston IL   145J TERRA NOVA TELECOM INC. 520   2021-01-15   

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

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