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: 224 [Rate centres in NPA 224] [Dial plan for NPA 224]

NXX: 566

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
224-566 A Algonquin IL CHCGILWURMD  965H FRACTEL, LLC 358      
224-566 0 Algonquin IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2021-02-09   
224-566 1 Algonquin IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2021-02-09   
224-566 2 Algonquin IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2021-02-09   
224-566 3 Algonquin IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2021-02-09   
224-566 4 Algonquin IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2021-02-09   
224-566 5 Algonquin IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2021-02-09   
224-566 6 Algonquin IL CHCGILWURMD  965H FRACTEL, LLC 358   2020-11-19   
224-566 7 Algonquin IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2021-02-09   
224-566 8 Algonquin IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2021-02-09   
224-566 9 Algonquin IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2021-02-09   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.