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.

Norris City, IL

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
618-378 A NRCYILXEDS0  1036 FRONTIER NORTH, INC. - IL 978      
618-378 2 NRCYILXEDS0  1036 FRONTIER NORTH, INC. - IL 978      
618-378 3 NRCYILXEDS0  1036 FRONTIER NORTH, INC. - IL 978      
618-378 6 OLNYILAB0MD  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 978   2017-09-14   
618-379 A CARMILXE8MD  9915 DELTA COMMS, LLC DBA CLEARWAVE COMMUNICATIONS - IL 978      
618-379 9 CARMILXE8MD  9915 DELTA COMMS, LLC DBA CLEARWAVE COMMUNICATIONS - IL 978      

Last updated: Sat, 15 Nov 2025 03:38:44 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.