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.

Switch: CENLILTU0MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
618-231 A Centralia IL 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520      
618-237 A Centralia IL 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520      
618-292 A Centralia IL 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520      
618-315 A Mount Vernon IL 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520      
618-339 A Centralia IL 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520      
618-352 A Centralia IL 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520      
618-359 A Centralia IL 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520      
618-472 A Mount Vernon IL 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520      
618-682 A Centralia IL 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520      
618-760 A Centralia IL 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520      
618-780 A Centralia IL 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520      
618-813 A Centralia IL 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520      
618-856 A Centralia IL 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520      
618-918 A Centralia IL 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520      
618-953 A Centralia IL 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520      
730-220 A Centralia IL 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520      
730-227 A Centralia IL 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520      
730-232 A Centralia IL 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2024-02-24   
730-234 A Centralia IL 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2024-04-08   
730-239 A Mount Vernon IL 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2024-05-09   
730-253 A Centralia IL 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2024-09-14   
730-258 A Centralia IL 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2024-12-27   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.