Xiang U (Xiangxi Tujia and Miao Autonomous Prefecture). A Changsha City B Zhuzhou City C Xiangtan City D Hengyang City E Shaoyang City F Yueyang City G Zhangjiajie City H Yiyang City J Changde City K Loudi City L Chenzhou City M Yongzhou City N Huaihua City S provincial system U Xiangxi Tujia and Miao Autonomous Prefecture "Xiang O" code, if all five digits are numbers, it must be within a thousand digits between 00000 and 00999, which is a restriction rule formulated by Hunan Province in 2002. Xiang O-SXXXX is the administrative vehicle of the provincial public security department, of which the last four digits are the administrative vehicle of the provincial public security department, Xiang o-saxxxx is the administrative vehicle of the directly under the authority office, Xiang O-SBXXX is the administrative vehicle of the criminal investigation brigade of the provincial public security department, Xiang O-SXXXX is the administrative vehicle of the provincial police association, Xiang O-rxxxx is the administrative vehicle of the provincial supervision system and Xiang O-TXXX is the administrative vehicle of the provincial traffic police corps. "Xiang S" is distributed to vehicles of provincial enterprises and institutions other than the "Xiang O" license, such as administrative and law enforcement vehicles of provincial offices and bureaus, and provincial media such as Hunan Daily and Hunan TV Station, but there are also many private cars. Most of them are in Changsha, and a few are in other cities and States, mainly some provincial-level agencies.