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.

Hillsboro, IL

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
217-532 A HLBOILXCRS0  1037 ILLINOIS CONSOLIDATED TEL. CO. 976      
217-608 A MTONILXC1MD  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 976      
217-608 0   197H COMPUTER TECHNIQUES, INC. - IL 976   2017-12-08   
217-608 3   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 976   2017-04-28   
217-608 4   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 976   2017-09-14   
217-608 5   7196 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 976   2018-10-02   

Last updated: Fri, 01 Jul 2022 02:53:40 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.