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.

Oblong, IL

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
618-454 A OLNYILXEHMD  846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 978      
618-454 4 OLNYILXEGMD  224C ONVOY, LLC 978   2021-04-09   
618-454 6 OLNYILXEFMD  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 978   2023-05-03   
618-480 A OLNYILXEHMD  846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 978      
618-480 1 OLNYILXEHMD  846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 978   2010-06-19   
618-480 4 OLNYILXEGMD  224C ONVOY, LLC 978   2020-09-14   
618-592 A OBLNILXEDS0  1065 ODIN TELEPHONE EXCHANGE, INC. 978      

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.