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.

Tilden, IL

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
618-587 A TLDNILXERS0  1015 FRONTIER NORTH, INC. - IL 362      
618-587 0 CRDLIL310MD  846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 362   2010-05-09   
618-587 1 TLDNILXERS0  1015 FRONTIER NORTH, INC. - IL 362      
618-587 2 TLDNILXERS0  1015 FRONTIER NORTH, INC. - IL 362      

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.