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: 619

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
618-619 A Alton IL COVLILCQXQX  829J PAETEC ITEL, LLC 520      
618-619 0 Alton IL   224C ONVOY, LLC 520   2016-03-28   
618-619 1 Alton IL   224C ONVOY, LLC 520   2016-03-28   
618-619 2 Alton IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 520   2015-10-23   
618-619 3 Alton IL   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 520   2019-05-10   
618-619 4 Alton IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 520   2016-02-05   
618-619 5 Alton IL   829J PAETEC ITEL, LLC 520   2015-01-22   
618-619 6 Alton IL   224C ONVOY, LLC 520   2016-09-06   
618-619 7 Alton IL   224C ONVOY, LLC 520   2016-09-06   
618-619 8 Alton IL   984E BANDWIDTH.COM CLEC, LLC - IL 520   2017-08-12   
618-619 9 Alton IL   073H TELNYX LLC 520   2017-06-14   

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

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