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.

Sumner, IL

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
618-936 A SMNRILXERS0  1015 FRONTIER NORTH, INC. - IL 978      
618-936 0 OLNYILXEGMD  224C ONVOY, LLC 978   2020-03-13   
618-936 2 SMNRILXERS0  1015 FRONTIER NORTH, INC. - IL 978      
618-936 3 OLNYILXEGMD  224C ONVOY, LLC 978   2021-04-24   
618-936 4 OLNYILAB0MD  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 978   2004-07-17   
618-936 5 OLNYILXEX2X  624H ONVOY SPECTRUM, LLC 978   2023-07-29   
618-936 6 OLNYILXEEMD  9915 DELTA COMMS, LLC DBA CLEARWAVE COMMUNICATIONS - IL 978   2003-06-04   
618-936 7 OLNYILXEGMD  224C ONVOY, LLC 978   2021-02-26   
618-936 8 OLNYILXEMMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 978   2015-07-12   
618-936 9 SMNRILXERS0  1015 FRONTIER NORTH, INC. - IL 978      

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.