It has historically been uninhabited, and nations like China and Japan claimed it to be their overseas territory. After World War II, the islands and the sea area around it were mandated by United Nations. Today they are administered by the Republic of China, which calls it the Dongsha Islands (東沙群島) or "East Sand Islands", and assigns the place a postal code (817).
Pratas is located 850km southwest of Taipei and 340km southeast of Hong Kong in the northern part of the South China Sea or the Pratas Terrace (20°43′N 116°42′E).
As a disputed island, there are no inhabitants on the island and are only visited by the military personnel or researchers.
A runway is located on the north end of PratasIsland with a small airport terminal at the eastern end.