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.

Alexander, IL

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
217-478 A ALXNILXGRS0  1015 FRONTIER NORTH, INC. - IL 376      
217-478 0   224C ONVOY, LLC 376   2021-08-09   
217-478 1   224C ONVOY, LLC 376   2023-08-28   
217-478 2   1015 FRONTIER NORTH, INC. - IL 376      
217-478 3   224C ONVOY, LLC 376   2023-05-14   
217-478 4   224C ONVOY, LLC 376   2023-04-09   
217-478 5   224C ONVOY, LLC 376   2021-05-09   
217-478 6   624H ONVOY SPECTRUM, LLC 376   2023-07-07   
217-478 7   224C ONVOY, LLC 376   2020-04-19   
217-478 8   224C ONVOY, LLC 376   2021-04-04   
447-255 A QNCYILAY00Z  490J DISH WIRELESS, LLC 376      
447-255 0   939H COMMIO, LLC 376   2023-09-11   
447-255 1   939H COMMIO, LLC 376   2023-09-11   
447-255 2   939H COMMIO, LLC 376   2023-09-11   
447-255 3   939H COMMIO, LLC 376   2023-09-11   
447-255 4   939H COMMIO, LLC 376   2023-09-11   
447-255 8   939H COMMIO, LLC 376   2024-02-03   
447-255 9   490J DISH WIRELESS, LLC 376   2023-07-23   

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.