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: 726

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
618-726 A O'Fallon IL COVLILCL0MD  516C AT&T CORP. 520      
618-726 0 O'Fallon IL   063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 520   2013-04-28   
618-726 1 O'Fallon IL   063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 520   2013-04-28   
618-726 2 O'Fallon IL   792K CHARTER IP ENABLED SERVICES, LLC 520   2013-08-13   
618-726 3 O'Fallon IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 520   2016-05-28   
618-726 4 O'Fallon IL   829J PAETEC ITEL, LLC 520   2012-03-14   
618-726 5 O'Fallon IL   829J PAETEC ITEL, LLC 520   2007-02-04   
618-726 6 O'Fallon IL   829J PAETEC ITEL, LLC 520   2010-04-19   
618-726 7 O'Fallon IL   516C AT&T CORP. 520   2006-05-05   
618-726 8 O'Fallon IL   224C ONVOY, LLC 520   2016-09-07   
618-726 9 O'Fallon IL   224C ONVOY, LLC 520   2016-09-07   

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

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