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: 217

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
779-217 A De Kalb IL STNGILSI00Z  490J DISH WIRELESS, LLC 364      
779-217 0 De Kalb IL   6529 T-MOBILE USA, INC. 364   2024-01-16   
779-217 1 De Kalb IL   6529 T-MOBILE USA, INC. 364   2024-01-16   
779-217 2 De Kalb IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 364   2024-03-31   
779-217 8 De Kalb IL   224C ONVOY, LLC 364   2024-02-29   
779-217 9 De Kalb IL STNGILSI00Z  490J DISH WIRELESS, LLC 364   2023-07-22   

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

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.