22 100 km2. Nanning, referred to as "Tan", was called Tan Guo in ancient times, also known as Greentown. Guangxi Zhuang Autonomous Region governs prefecture-level cities, capitals, I-type big cities, Beibu Gulf Economic Zone, Pearl River-Xijiang Economic Belt and the core cities of Beibu Gulf urban agglomeration, the permanent venue of China-ASEAN Expo, an important gateway city organically connected with the Belt and Road Economic Belt, a dry port-type national logistics hub of the new land and sea passage in the west, and the station of army organs in the southern theater. By 2022, the city will have seven districts and four counties 1 county-level city with a total area of 22 1 square kilometer. By the end of 20021,the permanent population of the city was 8,832,800, and the urban population was 6164,000, with an urbanization rate of 69.79%.