The Tobu Skytree Line (東武スカイツリーライン, Tōbu Sukaitsurii-rain) is a section of the Tobu Isesaki line operated by the private railway company Tobu Railway, extending from Asakusa Station in Tokyo to Tōbu-Dōbutsu-Kōen Station in Saitama Prefecture. Some trains from the line continue to the Tokyo Metro Hibiya Line and Tokyo Metro Hanzōmon Line. This section was branded the Tobu Skytree Line on 17 March 2012 in conjunction with the opening of the Tokyo Skytree tower (which Tobu Railway owns). However, in through services with the Hibiya line, the Tobu SkyTree Line actually does not stop anywhere near the Tokyo SkyTree.