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: 593

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
224-593 A Glenview IL CHCGIL24DS6  224C ONVOY, LLC 358   2024-04-28   
224-593 0 Glenview IL CHCGIL24DS6  224C ONVOY, LLC 358   2024-04-28   
224-593 1 Glenview IL CHCGILIDXDX  624H ONVOY SPECTRUM, LLC 358   2024-04-30   
224-593 2 Glenview IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2024-09-27   
224-593 6 Glenview IL RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2024-11-26   
224-593 7 Glenview IL RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2024-11-26   
224-593 9 Glenview IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2024-08-26   

Last updated: Fri, 25 Jul 2025 03:21:23 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.