Reference DataRate Center DirectorySUMNER, ME Rate CenterSUMNER — MEData last updated: October 30, 2026LATA120StateMEArea Codes1Exchanges (NXX)1Carriers1Coordinates44.39201129999999, -70.4383944Area Codes207Top CarriersCarrierOCNNXX CountOXFORD COUNTY TEL. & TEL. CO.00191