前111年（漢武帝元鼎六年），漢朝征服南越國，設立九郡，其中南海郡治仍設返去番禺。元封五年改屬交州，州治係廣信（現廣東封開）。
In 111 BC (the sixth year of Emperor Wu of the Han Dynasty), the Han Dynasty conquered Nanyue and established nine counties, of which Nanhai County was still set up back to Panyu. Yuan Feng five years changed to Jiaozhou, the state is Guangxin (now Guangdong Fengkai).