Reference DataRate Center DirectorySUPERIOR, IA Rate CenterSUPERIOR — IAData last updated: October 30, 2026LATA630StateIAArea Codes1Exchanges (NXX)1Carriers1Coordinates43.43169668893059, -94.9475087859546Area Codes712Top CarriersCarrierOCNNXX CountSUPERIOR TEL. COOP.13071