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.

Sutter, IL

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
217-658 A STTRILXCRS0  1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 977      
217-658 0   1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 977      
217-658 1   1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 977      
217-658 2   7091 ADAMS TELSYSTEMS, INC. 977   2015-05-02   
217-658 3   1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 977      
217-658 4   1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 977      
217-658 5   224C ONVOY, LLC 977   2020-03-13   
217-658 6   495J STRATUS NETWORKS 977   2021-02-28   
217-658 7   508J CENTURYLINK COMMUNICATIONS, LLC 977   2014-08-09   
217-658 8   1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 977      
217-658 9   1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 977      
447-457 A MCMBILXDX9X  224C ONVOY, LLC 977      
447-457 0   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 977   2021-06-13   
447-457 4   624H ONVOY SPECTRUM, LLC 977   2023-07-29   
447-457 7   224C ONVOY, LLC 977   2021-07-05   

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.