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.

OCN: 455H CENTURY ENTERPRISES, INC. - IL

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
309-245 5 Farmington IL   368   2017-10-15   
309-446 4 Brimfield IL   368   2017-10-15   
309-547 0 Lewistown IL   368   2017-03-31   
309-742 6 Elmwood IL   368   2016-10-07   
309-998 A Canton IL PEORILPJX0Z  368      

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.