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: 830

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
773-830 A Chicago Zone 05-Austin IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-830 0 Chicago Zone 05-Austin IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-830 1 Chicago Zone 05-Austin IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-830 2 Chicago Zone 05-Austin IL CHCGIL24DS6  224C ONVOY, LLC 358   2019-07-07   
773-830 3 Chicago Zone 05-Austin IL CHCGIL24DS6  224C ONVOY, LLC 358   2017-12-09   
773-830 4 Chicago Zone 05-Austin IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2013-02-28   
773-830 5 Chicago Zone 05-Austin IL CHCGIL24DS3  4604 FIRST COMMUNICATIONS, LLC - IL 358   2004-09-06   
773-830 6 Chicago Zone 05-Austin IL CHCGIL24DS6  224C ONVOY, LLC 358   2019-07-07   
773-830 7 Chicago Zone 05-Austin IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-830 8 Chicago Zone 05-Austin IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
773-830 9 Chicago Zone 05-Austin IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.