Central Japan Railway Company, or JR Central, is the main railway operator in Nagoya and the Chubu region in central Japan. It was originally established when the government-owned nationwide railway operator underwent a six-way territorial split in 1987. Its main asset is the Tokaido Shinkansen, which spans Japan's most wealthy and populous area and links Tokyo, Yokohama, Nagoya, Kyoto, and Osaka. It contributes three-fourths of revenue, with most of the balance from merchandise, conventional train lines, and real estate.