Reference DataRate Center DirectoryMINDALE, IL Rate CenterMINDALE — ILData last updated: October 30, 2026LATA376StateILArea Codes1Exchanges (NXX)1Carriers1Coordinates40.14534850831096, -90.84254158067282Area Codes217Top CarriersCarrierOCNNXX CountADAMS TEL. COOP.09761