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: 479

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
618-479 A Salem IL BLVLILAJ3MD  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 520      
618-479 0 Salem IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 520   2008-05-31   
618-479 1 Salem IL   063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 520   2013-04-28   
618-479 2 Salem IL   224C ONVOY, LLC 520   2021-11-27   
618-479 3 Salem IL   224C ONVOY, LLC 520   2016-03-31   
618-479 4 Salem IL   7196 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 520   2019-06-17   
618-479 5 Salem IL   516C AT&T CORP. 520   2011-04-26   
618-479 6 Salem IL   224C ONVOY, LLC 520   2021-11-27   
618-479 7 Salem IL   508J CENTURYLINK COMMUNICATIONS, LLC 520   2014-07-17   
618-479 8 Salem IL   063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 520   2013-04-28   
618-479 9 Salem IL   495J STRATUS NETWORKS 520   2020-12-18   

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

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