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 08-Portsmouth, IL

<< 1 2 3 4 5 6 7 8 9 10 11 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
773-432 4 CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2007-03-03   
773-432 5 ELGNILOT0MD  6529 T-MOBILE USA, INC. 358   2007-07-09   
773-432 6 CHCGIL24DS7  5917 FIRST COMMUNICATIONS, LLC 358      
773-432 7 CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2010-06-21   
773-432 8 CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2010-07-02   
773-432 9 CHCGIL24DS7  5917 FIRST COMMUNICATIONS, LLC 358      
773-470 A BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-470 0 BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-470 1 BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-470 2 BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-470 3 ELGNILOT0MD  6529 T-MOBILE USA, INC. 358   2007-01-16   
773-470 4 BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-470 5 ELGNILOT0MD  6529 T-MOBILE USA, INC. 358   2007-01-16   
773-470 6 ELGNILOT0MD  6529 T-MOBILE USA, INC. 358   2003-09-12   
773-470 7 ELGNILOT0MD  6529 T-MOBILE USA, INC. 358   2003-09-12   
773-470 8 ELGNILOT0MD  6529 T-MOBILE USA, INC. 358   2003-09-12   
773-470 9 ELGNILOT0MD  6529 T-MOBILE USA, INC. 358   2007-01-16   
773-492 A CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358      
773-492 0 CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2011-10-23   
773-492 1 CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2011-10-23   
773-492 2 CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2012-02-19   
773-492 3 CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2012-02-19   
773-492 4 CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2012-02-19   
773-492 5 CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2012-03-02   
773-492 6 CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2012-03-04   
773-492 7   400G CLEAR RATE COMMUNICATIONS, INC. - IL 358   2012-06-10   
773-492 8 CHCGIL24DS6  224C ONVOY, LLC 358   2012-10-01   
773-492 9   515J IP HORIZON LLC 358   2013-08-26   
773-498 A CHCGIL24DS0  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
773-498 0 CHCGIL24DS0  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
773-498 1 CHCGIL24DS0  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
773-498 2 CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358      
773-498 3 CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358      
773-498 4 CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358      
773-498 5 CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358   2009-11-14   
773-498 6 CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358      
773-498 7 CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358      
773-498 8 CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358      
773-498 9 CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358      
773-526 A CHCGILWUX1X  7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. 358      
773-526 0 ELGNILOT0MD  6529 T-MOBILE USA, INC. 358   2007-01-16   
773-526 1 ELGNILOT0MD  6529 T-MOBILE USA, INC. 358   2007-01-16   
773-526 2 ELGNILOT0MD  6529 T-MOBILE USA, INC. 358   2007-02-13   
773-526 3 ELGNILOT0MD  6529 T-MOBILE USA, INC. 358   2007-02-13   
773-526 4 CHCGIL24DS3  4604 FIRST COMMUNICATIONS, LLC - IL 358   2004-09-12   
773-526 5 CHCGILWUX1X  7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. 358      
773-526 6 ELGNILOT0MD  6529 T-MOBILE USA, INC. 358   2007-02-13   
773-526 7 CHCGILTCDS4  7056 XO ILLINOIS, INC. 358   2006-08-12   
773-526 8 ELGNILOT0MD  6529 T-MOBILE USA, INC. 358   2007-07-09   
773-526 9 ELGNILOT0MD  6529 T-MOBILE USA, INC. 358   2007-02-13   

<< 1 2 3 4 5 6 7 8 9 10 11 >>

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.