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: 901

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
773-901 A Chicago Zone 10-Beverly IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
773-901 0 Chicago Zone 10-Beverly IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-07-12   
773-901 1 Chicago Zone 10-Beverly IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2010-07-02   
773-901 2 Chicago Zone 10-Beverly IL CHCGIL24DS6  224C ONVOY, LLC 358   2010-07-19   
773-901 3 Chicago Zone 10-Beverly IL CHCGIL24DS6  224C ONVOY, LLC 358   2010-07-19   
773-901 4 Chicago Zone 10-Beverly IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2010-11-27   
773-901 5 Chicago Zone 10-Beverly IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2011-02-18   
773-901 6 Chicago Zone 10-Beverly IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2011-03-15   
773-901 7 Chicago Zone 10-Beverly IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2024-12-28   
773-901 8 Chicago Zone 10-Beverly IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2025-01-08   
773-901 9 Chicago Zone 10-Beverly IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2024-12-28   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.