Local Calling Guide

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Search area code/prefix (NPA/NXX)
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NPA: 847 [Rate centres in NPA 847] [Dial plan for NPA 847]

NXX: 665

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
847-665 A Grayslake IL GYLKILGLDS0  9329 ILLINOIS BELL TEL CO 358      
847-665 0 Grayslake IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-08-09   
847-665 1 Grayslake IL   224C ONVOY, LLC 358   2004-09-20   
847-665 2 Grayslake IL   9329 ILLINOIS BELL TEL CO 358   2003-11-20   
847-665 3 Grayslake IL   7196 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 358   2004-05-29   
847-665 4 Grayslake IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2005-07-14   
847-665 7 Grayslake IL   460K FIRST COMMUNICATIONS, LLC 358   2005-03-20   
847-665 8 Grayslake IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2005-03-20   
847-665 9 Grayslake IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2008-12-12   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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