Beijing Capital International Airport is the busiest of the two international airports serving Beijing, the capital of China. The airport is located 32 km northeast of Beijing's city center, in an exclave of Chaoyang and the surroundings of that exclave in suburban Shunyi. The airport is owned and operated by the Beijing Capital International Airport Company Limited, a state-controlled company. The airport's IATA Airport code, PEK, is based on the city's former romanized name, Peking.