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.

Chicago Zone 05-Merrimac, IL

1 2 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
773-237 A CHCGILMEDS0  9329 AMERITECH ILLINOIS 358      
773-295 A BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-295 0   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2007-10-26   
773-295 1   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2005-04-28   
773-295 2   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-03-24   
773-295 3   4604 FIRST COMMUNICATIONS LLC - IL 358   2004-11-12   
773-295 4   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2003-08-18   
773-295 5   7607 COMCAST PHONE OF ILLINOIS, LLC DBA COMCO - IL 358   2007-12-24   
773-295 6   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-03-24   
773-295 7   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2005-04-28   
773-295 8   7721 BROADWING COMMUNICATIONS, LLC - IL 358   2000-10-16   
773-295 9   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-385 A CHCGILMEDS0  9329 AMERITECH ILLINOIS 358      
773-466 A WDDLILCBDS0  7056 XO ILLINOIS, INC. 358      
773-466 0   7056 XO ILLINOIS, INC. 358      
773-466 1   7056 XO ILLINOIS, INC. 358      
773-466 2   984E BANDWIDTH.COM CLEC, LLC - IL 358   2014-02-16   
773-466 3   7056 XO ILLINOIS, INC. 358      
773-466 4   984E BANDWIDTH.COM CLEC, LLC - IL 358   2011-06-13   
773-466 5   984E BANDWIDTH.COM CLEC, LLC - IL 358   2011-06-13   
773-466 6   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2012-02-20   
773-466 7   984E BANDWIDTH.COM CLEC, LLC - IL 358   2011-06-13   
773-466 8   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2009-04-24   
773-466 9   984E BANDWIDTH.COM CLEC, LLC - IL 358   2014-02-16   
773-479 A CHCGILMEDS0  9329 AMERITECH ILLINOIS 358      
773-622 A CHCGILMEDS0  9329 AMERITECH ILLINOIS 358      
773-637 A CHCGILMEDS0  9329 AMERITECH ILLINOIS 358      
773-664 A CHCGILWUDS0  7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. 358      
773-664 0   7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. 358      
773-664 1   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-01-06   
773-664 2   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-01-06   
773-664 3   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-01-06   
773-664 4   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-01-06   
773-664 5   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-01-06   
773-664 6   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-01-20   
773-664 7   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-01-20   
773-664 8   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-01-20   
773-664 9   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-01-20   
773-676 A CHCGIL24DS0  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
773-676 0   984E BANDWIDTH.COM CLEC, LLC - IL 358   2014-02-16   
773-676 1   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
773-676 2   984E BANDWIDTH.COM CLEC, LLC - IL 358   2014-02-16   
773-676 3   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-02-24   
773-676 4   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-02-24   
773-676 5   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-02-24   
773-676 6   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-02-24   
773-676 7   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-02-24   
773-676 8   2491 CBEYOND COMMUNICATIONS, LLC - IL 358   2012-02-16   
773-676 9   984E BANDWIDTH.COM CLEC, LLC - IL 358   2014-02-16   
773-745 A CHCGILMEDS0  9329 AMERITECH ILLINOIS 358      

1 2 >>

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.