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: 815 [Rate centres in NPA 815] [Dial plan for NPA 815]

NXX: 559

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
815-559 A Chenoa IL BLTNILXDX5Y  597F VOIP INNOVATIONS, LLC 366      
815-559 0 Chenoa IL   224C ONVOY, LLC 366   2019-07-15   
815-559 1 Chenoa IL   224C ONVOY, LLC 366   2019-07-15   
815-559 2 Chenoa IL   597F VOIP INNOVATIONS, LLC 366   2019-08-19   
815-559 5 Chenoa IL   224C ONVOY, LLC 366   2019-01-31   
815-559 7 Chenoa IL   624H ONVOY SPECTRUM, LLC 366   2023-06-02   
815-559 8 Chenoa IL   073H TELNYX LLC 366   2020-06-26   
815-559 9 Chenoa IL   495J STRATUS NETWORKS 366   2020-10-14   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.