Local Calling Guide

Area code/prefix search

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

NXX: 579

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
847-579 A Deerfield IL DRFDILDFDS0  9329 ILLINOIS BELL TEL CO 358      
847-579 0 Deerfield IL   9329 ILLINOIS BELL TEL CO 358      
847-579 1 Deerfield IL   9329 ILLINOIS BELL TEL CO 358      
847-579 2 Deerfield IL   7421 AT&T - LOCAL 358   2003-07-19   
847-579 3 Deerfield IL   9329 ILLINOIS BELL TEL CO 358      
847-579 4 Deerfield IL   984E BANDWIDTH.COM CLEC, LLC - IL 358      
847-579 5 Deerfield IL   829J PAETEC ITEL, LLC 358   1999-03-01   
847-579 6 Deerfield IL   5447 ACCESS ONE, INC. - IL 358   2006-01-28   
847-579 7 Deerfield IL   829J PAETEC ITEL, LLC 358   2001-03-13   
847-579 8 Deerfield IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2022-04-18   
847-579 9 Deerfield IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2008-12-12   

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

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