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 01-Canal, IL

<< 1 2 3 4 5 6 7 8 9 10 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
312-768 A CHCGILCLEMD  7421 AT&T - LOCAL 358      
312-768 0 CHCGILMF2MD  6664 SPRINT SPECTRUM, L.P. 358   2011-02-24   
312-768 1 CHCGILCPDS5  4717 PAETEC COMMUNICATIONS, INC. - IL 358   2009-04-16   
312-768 2 CHCGILCLDS0  9329 ILLINOIS BELL TEL CO 358   2002-10-23   
312-768 3 CHCGILMF2MD  6664 SPRINT SPECTRUM, L.P. 358   2011-01-05   
312-768 4 CHCGILDTDS3  5447 ACCESS ONE, INC. - IL 358   2007-09-22   
312-768 5 CHCGILCLEMD  7421 AT&T - LOCAL 358      
312-768 6 CHCGILDTDS3  5447 ACCESS ONE, INC. - IL 358   2007-09-22   
312-768 7 CHCGIL24DS3  4604 FIRST COMMUNICATIONS LLC - IL 358   2005-02-20   
312-768 8 CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2010-03-04   
312-768 9 CHCGILMF2MD  6664 SPRINT SPECTRUM, L.P. 358   2011-05-26   
312-775 A CHCGILCLDS3  9329 ILLINOIS BELL TEL CO 358      
312-775 0 CHCGILCLDS3  9329 ILLINOIS BELL TEL CO 358      
312-775 1 CHCGILCPDS5  4717 PAETEC COMMUNICATIONS, INC. - IL 358   2008-03-31   
312-775 2 CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2010-03-04   
312-775 3 CHCGILCLDS3  9329 ILLINOIS BELL TEL CO 358      
312-775 4 CHCGILCPDS5  4717 PAETEC COMMUNICATIONS, INC. - IL 358   2011-04-20   
312-775 5 CHCGILCLDS3  9329 ILLINOIS BELL TEL CO 358      
312-775 6 CHCGILCLDS3  9329 ILLINOIS BELL TEL CO 358      
312-775 7 CHCGILCLDS3  9329 ILLINOIS BELL TEL CO 358      
312-775 8 CHCGILCLDS3  9329 ILLINOIS BELL TEL CO 358      
312-775 9 CHCGILCLDS3  9329 ILLINOIS BELL TEL CO 358      
312-794 A CHCGILACGT0  8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
312-794 0 CHCGILACGT0  8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
312-794 1 CHCGILTCDS0  7056 XO ILLINOIS, INC. 358   2005-01-18   
312-794 2 CHCGILACGT0  8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
312-794 3 CHCGILACGT0  8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
312-794 4 CHCGILACGT0  8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
312-794 5 CHCGILACGT0  8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
312-794 6 CHCGILTCDS0  7056 XO ILLINOIS, INC. 358   2005-01-18   
312-794 7 CHCGILTCDS0  7056 XO ILLINOIS, INC. 358   2005-01-18   
312-794 8 CHCGILTCDS0  7056 XO ILLINOIS, INC. 358   2005-01-18   
312-794 9 CHCGILACGT0  8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
312-798 A CHCGILCLDS3  9329 ILLINOIS BELL TEL CO 358      
312-798 0 CHCGILCLDS3  9329 ILLINOIS BELL TEL CO 358      
312-798 1 CHCGILCLDS3  9329 ILLINOIS BELL TEL CO 358      
312-798 2 CHCGILCLDS3  9329 ILLINOIS BELL TEL CO 358      
312-798 3 CHCGILCLDS3  9329 ILLINOIS BELL TEL CO 358      
312-798 4 CHCGILCLDS3  9329 ILLINOIS BELL TEL CO 358      
312-798 5 CHCGILCLDS3  9329 ILLINOIS BELL TEL CO 358      
312-798 6 CHCGILCLDS3  9329 ILLINOIS BELL TEL CO 358      
312-798 7 CHCGILCLDS3  9329 ILLINOIS BELL TEL CO 358      
312-798 8 CHCGILCLDS3  9329 ILLINOIS BELL TEL CO 358      
312-798 9 CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2010-03-04   
312-831 A CHCGILCLDS3  9329 ILLINOIS BELL TEL CO 358      
312-869 A CHCGILCLDS3  9329 ILLINOIS BELL TEL CO 358      
312-869 0 BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-02-10   
312-869 1 BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-02-10   
312-869 2 CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2010-03-04   
312-869 3 CHCGILCLDS3  9329 ILLINOIS BELL TEL CO 358      

<< 1 2 3 4 5 6 7 8 9 10 >>

Last updated: Wed, 01 Jun 2022 03:09:23 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.