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.

NPA: 773 [Rate centres in NPA 773] [Dial plan for NPA 773]

NXX: 453

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
773-453 A Chicago Zone 11-O'Hare IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-453 0 Chicago Zone 11-O'Hare IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-453 1 Chicago Zone 11-O'Hare IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-453 2 Chicago Zone 11-O'Hare IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2014-05-19   
773-453 3 Chicago Zone 11-O'Hare IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-453 4 Chicago Zone 11-O'Hare IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2012-06-01   
773-453 5 Chicago Zone 11-O'Hare IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2014-05-19   
773-453 6 Chicago Zone 11-O'Hare IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2013-05-06   
773-453 7 Chicago Zone 11-O'Hare IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2013-12-13   
773-453 8 Chicago Zone 11-O'Hare IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2013-12-13   
773-453 9 Chicago Zone 11-O'Hare IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2013-12-13   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.