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: 618 [Rate centres in NPA 618] [Dial plan for NPA 618]

NXX: 224

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
618-224 A Trenton IL TRENILTRRS0  9329 ILLINOIS BELL TEL CO 520      
618-224 0 Trenton IL   063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 520   2012-10-28   
618-224 1 Trenton IL   063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 520   2013-05-05   
618-224 2 Trenton IL   9329 ILLINOIS BELL TEL CO 520      
618-224 3 Trenton IL   063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 520   2013-05-05   
618-224 4 Trenton IL   508J CENTURYLINK COMMUNICATIONS, LLC 520   2014-07-17   
618-224 5 Trenton IL   516C AT&T CORP. 520   2011-09-29   
618-224 6 Trenton IL   792K CHARTER IP ENABLED SERVICES, LLC 520   2005-05-19   
618-224 7 Trenton IL   9329 ILLINOIS BELL TEL CO 520      
618-224 9 Trenton IL   9329 ILLINOIS BELL TEL CO 520      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.