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 04-Humboldt, IL

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
773-292 A CHCGILHBDS1  9329 ILLINOIS BELL TEL CO 358      
773-305 A BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-305 0 BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-305 1 BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-305 2 BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-305 3 BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-305 4 BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-305 5 BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-305 6 CHCGILWUDS4  063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 358   2019-12-28   
773-305 7 BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-305 8 BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-305 9 BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-328 A CHCGIL24DS3  4604 FIRST COMMUNICATIONS, LLC - IL 358      
773-328 0 CHCGILMF3MD  6529 T-MOBILE USA, INC. 358   2011-03-16   
773-328 1 CHCGILDTDS3  5447 ACCESS ONE, INC. - IL 358   2010-09-19   
773-328 2 CHCGIL24DS3  4604 FIRST COMMUNICATIONS, LLC - IL 358      
773-328 3 CHCGIL24DS3  4604 FIRST COMMUNICATIONS, LLC - IL 358      
773-328 4 CHCGIL24DS3  4604 FIRST COMMUNICATIONS, LLC - IL 358      
773-328 5 CHCGIL24DS3  4604 FIRST COMMUNICATIONS, LLC - IL 358   2004-09-12   
773-328 6 CHCGIL24DS3  4604 FIRST COMMUNICATIONS, LLC - IL 358      
773-328 7 CHCGILHBDS1  9329 ILLINOIS BELL TEL CO 358   2001-09-10   
773-328 8 CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2010-11-27   
773-328 9 CHCGILMF3MD  6529 T-MOBILE USA, INC. 358   2011-03-16   
773-342 A CHCGILHBDS1  9329 ILLINOIS BELL TEL CO 358      
773-360 A CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-360 0 CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-10-25   
773-360 1 CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358   2007-09-07   
773-360 2 CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-360 3 CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-03-05   
773-360 4 RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2019-02-09   
773-360 5 CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-04-24   
773-360 6 CHCGIL24DS3  4604 FIRST COMMUNICATIONS, LLC - IL 358   2006-05-12   
773-360 7 CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358   2006-06-02   
773-360 8 CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358   2006-03-31   
773-360 9 CHCGIL24DS6  224C ONVOY, LLC 358   2022-08-21   
773-365 A BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-365 0 BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-365 1 CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2018-03-30   
773-365 2 OKBRILOAXEX  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2018-02-16   
773-365 3 BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-365 4 BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-365 5 BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-365 6 BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-365 7 BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-365 8 BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-365 9 CHCGIL24DS6  224C ONVOY, LLC 358   2018-01-18   
773-384 A CHCGILHBDS1  9329 ILLINOIS BELL TEL CO 358      
773-394 A CHCGILHBDS1  9329 ILLINOIS BELL TEL CO 358      
773-394 0 CHCGILMF3MD  6529 T-MOBILE USA, INC. 358   2015-08-14   
773-394 1 RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2018-04-17   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 >>

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.