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: 579

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
847-579 A Deerfield IL DRFDILDFDS0  9329 ILLINOIS BELL TEL CO 358      
847-579 0 Deerfield IL DRFDILDFDS0  9329 ILLINOIS BELL TEL CO 358      
847-579 1 Deerfield IL DRFDILDFDS0  9329 ILLINOIS BELL TEL CO 358      
847-579 2 Deerfield IL OKBRILOADS3  7421 AT&T - LOCAL 358      
847-579 3 Deerfield IL DRFDILDFDS0  9329 ILLINOIS BELL TEL CO 358      
847-579 4 Deerfield IL   984E BANDWIDTH.COM CLEC, LLC - IL 358      
847-579 5 Deerfield IL   829J PAETEC ITEL, LLC 358      
847-579 6 Deerfield IL CHCGILDTDS3  5447 ACCESS ONE, INC. - IL 358      
847-579 7 Deerfield IL   829J PAETEC ITEL, LLC 358      
847-579 8 Deerfield IL RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358      
847-579 9 Deerfield IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.