Reference DataRate Center DirectoryKENNEBEC, SD Rate CenterKENNEBEC — SDData last updated: October 30, 2026LATA640StateSDArea Codes1Exchanges (NXX)1Carriers1Coordinates43.90323960339857, -99.86160428085806Area Codes605Top CarriersCarrierOCNNXX CountKENNEBEC TEL. CO.16681