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: 780

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
773-780 A Chicago Zone 08-Portsmouth IL ELGNILOT0MD  6529 T-MOBILE USA, INC. 358      
773-780 0 Chicago Zone 08-Portsmouth IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2011-06-13   
773-780 1 Chicago Zone 08-Portsmouth IL ELGNILOT0MD  6529 T-MOBILE USA, INC. 358   2003-07-14   
773-780 2 Chicago Zone 08-Portsmouth IL CHCGIL24DS6  224C ONVOY, LLC 358   2011-08-01   
773-780 3 Chicago Zone 08-Portsmouth IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2011-06-13   
773-780 4 Chicago Zone 08-Portsmouth IL ELGNILOT0MD  6529 T-MOBILE USA, INC. 358   2003-07-14   
773-780 5 Chicago Zone 08-Portsmouth IL ELGNILOT0MD  6529 T-MOBILE USA, INC. 358   2003-08-11   
773-780 6 Chicago Zone 08-Portsmouth IL ELGNILOT0MD  6529 T-MOBILE USA, INC. 358   2003-08-11   
773-780 7 Chicago Zone 08-Portsmouth IL ELGNILOT0MD  6529 T-MOBILE USA, INC. 358   2003-09-12   
773-780 8 Chicago Zone 08-Portsmouth IL ELGNILOT0MD  6529 T-MOBILE USA, INC. 358   2003-09-12   
773-780 9 Chicago Zone 08-Portsmouth IL ELGNILOT0MD  6529 T-MOBILE USA, INC. 358   2003-09-12   

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

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.