Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Switch: CHCGILWUX6X

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 >>

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
815-506 5 Union IL 460K FIRST COMMUNICATIONS, LLC 358   2004-11-25   
815-506 7 Union IL 460K FIRST COMMUNICATIONS, LLC 358   2004-02-07   
815-507 1 Momence IL 460K FIRST COMMUNICATIONS, LLC 358   2003-06-28   
815-512 A Lockport IL 460K FIRST COMMUNICATIONS, LLC 358      
815-514 2 Joliet IL 460K FIRST COMMUNICATIONS, LLC 358   2010-05-05   
815-515 3 Watseka IL 460K FIRST COMMUNICATIONS, LLC 358   2004-11-28   
815-518 A Coal City IL 460K FIRST COMMUNICATIONS, LLC 358      
815-518 0 Coal City IL 460K FIRST COMMUNICATIONS, LLC 358      
815-518 3 Coal City IL 460K FIRST COMMUNICATIONS, LLC 358   2003-07-07   
815-526 1 Crystal Lake IL 460K FIRST COMMUNICATIONS, LLC 358   2011-01-01   
815-531 3 Joliet IL 460K FIRST COMMUNICATIONS, LLC 358   2005-02-26   
815-531 6 Joliet IL 460K FIRST COMMUNICATIONS, LLC 358   2005-03-19   
815-534 3 Frankfort IL 460K FIRST COMMUNICATIONS, LLC 358   2008-05-12   
815-534 6 Frankfort IL 460K FIRST COMMUNICATIONS, LLC 358   2003-05-26   
815-534 7 Frankfort IL 460K FIRST COMMUNICATIONS, LLC 358   2009-03-22   
815-552 6 Lockport IL 460K FIRST COMMUNICATIONS, LLC 358   2014-05-04   
815-556 4 Plainfield IL 460K FIRST COMMUNICATIONS, LLC 358   2005-03-19   
815-560 5 Harvard IL 460K FIRST COMMUNICATIONS, LLC 358   2004-11-25   
815-560 8 Harvard IL 460K FIRST COMMUNICATIONS, LLC 358   2004-02-04   
815-570 8 Sandwich IL 460K FIRST COMMUNICATIONS, LLC 358   2004-02-07   
815-572 7 Marengo IL 460K FIRST COMMUNICATIONS, LLC 358   2004-02-04   
815-584 8 Dwight IL 460K FIRST COMMUNICATIONS, LLC 358   2004-02-04   
815-587 6 Ottawa IL 460K FIRST COMMUNICATIONS, LLC 358   2005-03-19   
815-602 A Kankakee IL 460K FIRST COMMUNICATIONS, LLC 358      
815-606 A Ottawa IL 460K FIRST COMMUNICATIONS, LLC 358      
815-642 6 Minooka IL 460K FIRST COMMUNICATIONS, LLC 358   2004-11-28   
815-651 2 Joliet IL 460K FIRST COMMUNICATIONS, LLC 358   2010-05-28   
815-661 8 Morris IL 460K FIRST COMMUNICATIONS, LLC 358   2014-05-05   
815-662 3 Momence IL 460K FIRST COMMUNICATIONS, LLC 358   2005-02-20   
815-676 2 Plainfield IL 460K FIRST COMMUNICATIONS, LLC 358   2004-07-15   
815-679 4 McHenry IL 460K FIRST COMMUNICATIONS, LLC 358   2010-09-23   
815-697 1 Chebanse IL 460K FIRST COMMUNICATIONS, LLC 358   2003-07-03   
815-698 3 Ashkum IL 460K FIRST COMMUNICATIONS, LLC 358   2004-11-25   
815-698 6 Ashkum IL 460K FIRST COMMUNICATIONS, LLC 358   2004-06-18   
815-705 1 Morris IL 460K FIRST COMMUNICATIONS, LLC 358   2012-06-19   
815-705 2 Morris IL 460K FIRST COMMUNICATIONS, LLC 358   2012-06-19   
815-705 3 Morris IL 460K FIRST COMMUNICATIONS, LLC 358   2013-01-11   
815-705 7 Morris IL 460K FIRST COMMUNICATIONS, LLC 358   2012-06-19   
815-717 A New Lenox IL 460K FIRST COMMUNICATIONS, LLC 358      
815-717 2 New Lenox IL 460K FIRST COMMUNICATIONS, LLC 358      
815-717 3 New Lenox IL 460K FIRST COMMUNICATIONS, LLC 358   2004-07-15   
815-769 3 Seneca IL 460K FIRST COMMUNICATIONS, LLC 358   2003-07-07   
815-785 2 Watseka IL 460K FIRST COMMUNICATIONS, LLC 358   2003-05-20   
815-792 6 Harding IL 460K FIRST COMMUNICATIONS, LLC 358   2004-02-04   
815-802 6 Kankakee IL 460K FIRST COMMUNICATIONS, LLC 358   2007-11-20   
815-823 8 Joliet IL 460K FIRST COMMUNICATIONS, LLC 358   2004-07-15   
815-828 3 Minooka IL 460K FIRST COMMUNICATIONS, LLC 358   2003-07-03   
815-828 8 Minooka IL 460K FIRST COMMUNICATIONS, LLC 358   2005-03-19   
815-893 5 Crystal Lake IL 460K FIRST COMMUNICATIONS, LLC 358   2005-06-16   
815-907 6 Manteno IL 460K FIRST COMMUNICATIONS, LLC 358   2003-07-03   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 >>

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

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.