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.

Chesterfield-Rockbridge, IL

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
618-753 A CHFDILXERS0  1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 520      
618-753 0 CHFDILXERS0  1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 520      
618-753 1 CHFDILXERS0  1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 520      
618-753 2 CHFDILXERS0  1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 520      
618-753 3 CHFDILXERS0  1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 520      
618-753 4 STLSMOWQDS2  224C ONVOY, LLC 520   2019-07-29   
618-753 5 STLSMOWQDS2  224C ONVOY, LLC 520   2018-07-29   
618-753 6 STLSMOWQDS2  224C ONVOY, LLC 520   2019-07-29   
618-753 7 COVLILCQXEX  508J CENTURYLINK COMMUNICATIONS, LLC 520   2016-01-21   
618-753 8 COVLILCQXIX  984E BANDWIDTH.COM CLEC, LLC - IL 520   2020-04-12   
618-753 9 CHFDILXERS0  1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 520      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.