Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
224-383 2 Northbrook IL 460K FIRST COMMUNICATIONS, LLC 358   2004-07-15   
224-383 3 Northbrook IL 460K FIRST COMMUNICATIONS, LLC 358   2004-07-15   
224-383 6 Northbrook IL 460K FIRST COMMUNICATIONS, LLC 358   2004-07-15   
224-383 9 Northbrook IL 460K FIRST COMMUNICATIONS, LLC 358   2004-07-15   
224-387 3 Arlington Heights IL 460K FIRST COMMUNICATIONS, LLC 358   2008-09-14   
224-387 4 Arlington Heights IL 460K FIRST COMMUNICATIONS, LLC 358   2008-08-24   
224-420 3 Evanston IL 460K FIRST COMMUNICATIONS, LLC 358   2006-05-30   
224-420 4 Evanston IL 460K FIRST COMMUNICATIONS, LLC 358   2005-03-20   
224-420 5 Evanston IL 460K FIRST COMMUNICATIONS, LLC 358   2005-06-20   
224-420 8 Evanston IL 460K FIRST COMMUNICATIONS, LLC 358   2004-12-02   
224-435 2 Glenview IL 460K FIRST COMMUNICATIONS, LLC 358   2015-07-04   
224-444 2 Lake Villa IL 460K FIRST COMMUNICATIONS, LLC 358   2005-09-30   
224-479 2 Northbrook IL 460K FIRST COMMUNICATIONS, LLC 358   2015-02-19   
224-484 A Dundee IL 460K FIRST COMMUNICATIONS, LLC 358      
224-484 1 Dundee IL 460K FIRST COMMUNICATIONS, LLC 358   2012-04-23   
224-515 7 Deerfield IL 460K FIRST COMMUNICATIONS, LLC 358   2006-01-26   
224-520 7 Roselle IL 460K FIRST COMMUNICATIONS, LLC 358   2005-03-20   
224-521 2 Glenview IL 460K FIRST COMMUNICATIONS, LLC 358   2004-07-16   
224-521 9 Glenview IL 460K FIRST COMMUNICATIONS, LLC 358   2005-01-10   
224-528 A Roselle IL 460K FIRST COMMUNICATIONS, LLC 358      
224-528 0 Roselle IL 460K FIRST COMMUNICATIONS, LLC 358   2023-12-02   
224-533 A Deerfield IL 460K FIRST COMMUNICATIONS, LLC 358      
224-533 0 Deerfield IL 460K FIRST COMMUNICATIONS, LLC 358   2006-05-26   
224-533 1 Deerfield IL 460K FIRST COMMUNICATIONS, LLC 358   2006-05-26   
224-533 2 Deerfield IL 460K FIRST COMMUNICATIONS, LLC 358   2006-05-26   
224-533 3 Deerfield IL 460K FIRST COMMUNICATIONS, LLC 358   2006-05-26   
224-533 4 Deerfield IL 460K FIRST COMMUNICATIONS, LLC 358   2006-05-26   
224-533 5 Deerfield IL 460K FIRST COMMUNICATIONS, LLC 358   2006-05-26   
224-533 6 Deerfield IL 460K FIRST COMMUNICATIONS, LLC 358   2006-05-26   
224-533 7 Deerfield IL 460K FIRST COMMUNICATIONS, LLC 358   2006-05-26   
224-533 8 Deerfield IL 460K FIRST COMMUNICATIONS, LLC 358   2006-05-26   
224-533 9 Deerfield IL 460K FIRST COMMUNICATIONS, LLC 358   2006-05-26   
224-535 7 Elgin IL 460K FIRST COMMUNICATIONS, LLC 358   2006-09-14   
224-543 4 Wheeling IL 460K FIRST COMMUNICATIONS, LLC 358   2005-05-10   
224-552 5 Lake Forest IL 460K FIRST COMMUNICATIONS, LLC 358   2007-02-11   
224-569 7 Huntley IL 460K FIRST COMMUNICATIONS, LLC 358   2004-09-20   
224-569 8 Huntley IL 460K FIRST COMMUNICATIONS, LLC 358   2004-12-11   
224-588 4 Wheeling IL 460K FIRST COMMUNICATIONS, LLC 358   2004-12-02   
224-603 5 Antioch IL 460K FIRST COMMUNICATIONS, LLC 358   2006-07-30   
224-612 7 Des Plaines IL 460K FIRST COMMUNICATIONS, LLC 358   2004-09-20   
224-623 6 Algonquin IL 460K FIRST COMMUNICATIONS, LLC 358   2004-12-02   
224-629 5 Elgin IL 460K FIRST COMMUNICATIONS, LLC 358   2004-10-17   
224-632 5 Deerfield IL 460K FIRST COMMUNICATIONS, LLC 358   2005-01-10   
224-632 6 Deerfield IL 460K FIRST COMMUNICATIONS, LLC 358   2004-10-17   
224-643 3 Lake Villa IL 460K FIRST COMMUNICATIONS, LLC 358   2006-05-22   
224-653 7 Willowcrest IL 460K FIRST COMMUNICATIONS, LLC 358   2006-12-08   
224-654 7 Huntley IL 460K FIRST COMMUNICATIONS, LLC 358   2007-11-20   
224-655 1 Barrington IL 460K FIRST COMMUNICATIONS, LLC 358   2014-05-24   
224-661 4 Glenview IL 460K FIRST COMMUNICATIONS, LLC 358   2015-08-21   
224-662 2 Lake Zurich IL 460K FIRST COMMUNICATIONS, LLC 358   2015-02-05   

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Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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