Reference DataRate Center DirectorySTEVENS, IA Rate CenterSTEVENS — IAData last updated: October 30, 2026LATA620StateIAArea Codes1Exchanges (NXX)1Carriers1Coordinates43.43162390000002, -94.00412249999998Area Codes641Top CarriersCarrierOCNNXX CountBLUE EARTH VALLEY TEL. CO.13581