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: 816

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
618-816 A Mount Vernon IL BLVLILAJ3MD  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 520      
618-816 0 Mount Vernon IL   224C ONVOY, LLC 520   2016-09-07   
618-816 1 Mount Vernon IL   5562 METROPCS, INC. 520   2011-03-04   
618-816 2 Mount Vernon IL   6529 T-MOBILE USA, INC. 520   2011-03-04   
618-816 3 Mount Vernon IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 520   2012-12-28   
618-816 4 Mount Vernon IL   516C AT&T CORP. 520   2013-11-08   
618-816 5 Mount Vernon IL   984E BANDWIDTH.COM CLEC, LLC - IL 520   2020-02-28   
618-816 6 Mount Vernon IL   984E BANDWIDTH.COM CLEC, LLC - IL 520   2018-07-20   
618-816 7 Mount Vernon IL   224C ONVOY, LLC 520   2016-09-07   
618-816 8 Mount Vernon IL   224C ONVOY, LLC 520   2016-04-22   
618-816 9 Mount Vernon IL   224C ONVOY, LLC 520   2016-04-22   

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

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