武威市
As of 747, An Sishun was serving as the military governor ("jiedushi") of Shuofang Circuit (朔方, headquartered in modern Yinchuan, Ningxia), when, as a part of governor movements, Emperor Xuanzong made him the military governor of Hexi Circuit (河西, headquartered in modern Wuwei, Gansu), as well as acting governor of Wuwei Commandery. In 750, he assumed the military governorship of Shuofang as well.