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.

NPA: 847 [Rate centres in NPA 847] [Dial plan for NPA 847]

NXX: 604

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
847-604 A Lake Forest IL LKFRILLFRP0  9329 ILLINOIS BELL TEL CO 358      
847-604 0 Lake Forest IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2014-02-16   
847-604 1 Lake Forest IL LKFRILLFRP0  9329 ILLINOIS BELL TEL CO 358      
847-604 2 Lake Forest IL LKFRILLFRP0  9329 ILLINOIS BELL TEL CO 358      
847-604 3 Lake Forest IL CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358   2013-10-03   
847-604 4 Lake Forest IL CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358   2014-01-23   
847-604 5 Lake Forest IL LKFRILLFRP0  9329 ILLINOIS BELL TEL CO 358      
847-604 6 Lake Forest IL LKFRILLFRP0  9329 ILLINOIS BELL TEL CO 358      
847-604 7 Lake Forest IL LKFRILLFRP0  9329 ILLINOIS BELL TEL CO 358      
847-604 8 Lake Forest IL LKFRILLFRP0  9329 ILLINOIS BELL TEL CO 358      
847-604 9 Lake Forest IL LKFRILLFRP0  9329 ILLINOIS BELL TEL CO 358      

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.