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: 873

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
773-873 A Chicago Zone 07-Stewart IL CHCGILSTDS0  9329 ILLINOIS BELL TEL CO 358      
773-873 0 Chicago Zone 07-Stewart IL CHCGILSTDS0  9329 ILLINOIS BELL TEL CO 358      
773-873 1 Chicago Zone 07-Stewart IL CHCGILSTDS0  9329 ILLINOIS BELL TEL CO 358      
773-873 2 Chicago Zone 07-Stewart IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358      
773-873 3 Chicago Zone 07-Stewart IL CHCGILSTDS0  9329 ILLINOIS BELL TEL CO 358      
773-873 4 Chicago Zone 07-Stewart IL CHCGILSTDS0  9329 ILLINOIS BELL TEL CO 358      
773-873 5 Chicago Zone 07-Stewart IL CHCGIL24DS6  224C ONVOY, LLC 358      
773-873 6 Chicago Zone 07-Stewart IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358      
773-873 7 Chicago Zone 07-Stewart IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358      
773-873 8 Chicago Zone 07-Stewart IL CHCGILSTDS0  9329 ILLINOIS BELL TEL CO 358      
773-873 9 Chicago Zone 07-Stewart IL CHCGILSTDS0  9329 ILLINOIS BELL TEL CO 358      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.