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: 788

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
773-788 A Summit IL SMMTILSMDS0  9329 ILLINOIS BELL TEL CO 358      
773-788 0 Summit IL SMMTILSMDS0  9329 ILLINOIS BELL TEL CO 358      
773-788 1 Summit IL SMMTILSMDS0  9329 ILLINOIS BELL TEL CO 358      
773-788 2 Summit IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2011-09-18   
773-788 3 Summit IL CHCGIL24DS6  224C ONVOY, LLC 358   2022-08-21   
773-788 4 Summit IL CHCGIL24DS6  224C ONVOY, LLC 358   2022-08-21   
773-788 5 Summit IL ELGNILOT0MD  6529 T-MOBILE USA, INC. 358   2007-07-09   
773-788 6 Summit IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2007-03-03   
773-788 7 Summit IL SMMTILSMDS0  9329 ILLINOIS BELL TEL CO 358      
773-788 8 Summit IL ELGNILOT0MD  6529 T-MOBILE USA, INC. 358   2007-07-09   
773-788 9 Summit IL SMMTILSMDS0  9329 ILLINOIS BELL TEL CO 358      

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

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.