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: 779 [Rate centres in NPA 779] [Dial plan for NPA 779]

NXX: 291

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
779-291 A Wonder Lake IL CHCGIL24XMD  495J STRATUS NETWORKS 358      
779-291 0 Wonder Lake IL CHCGILIDXDX  624H ONVOY SPECTRUM, LLC 358   2024-04-28   
779-291 1 Wonder Lake IL CHCGIL24XMD  495J STRATUS NETWORKS 358   2020-10-31   
779-291 3 Wonder Lake IL CHCGIL24DS6  224C ONVOY, LLC 358   2021-04-23   
779-291 4 Wonder Lake IL CHCGIL24DS6  224C ONVOY, LLC 358   2021-04-23   
779-291 5 Wonder Lake IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2022-12-09   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.