Where is the license plate number Shaanxi U from?

[DeGenesis]

Shaanxi U is the license plate for provincial-level government agencies in Xi'an, Shaanxi Province. The license plates for other cities in Shaanxi Province are as follows: Xi'an (Shaanxi A), Tongchuan (Shaanxi B), Baoji (Shaanxi C), Xianyang (Shaanxi D), Weinan (Shaanxi E), Hanzhong (Shaanxi F), Ankang (Shaanxi G), Shangluo (Shaanxi H), Yan'an (Shaanxi J), Yulin (Shaanxi K), Yangling High-Tech Agricultural Demonstration Zone (Shaanxi V), and Xi'an municipal government agencies (Shaanxi O). License plates, commonly known as car plates, are panels hung on the front and rear of vehicles, typically made of aluminum, iron, plastic, or paper. License plates serve as a numbering and information registration system for vehicles, with the primary purpose of identifying the vehicle's region of registration and enabling the tracing of the vehicle's owner and registration details through the license plate number.