Where is the license plate starting with 'ln' from?

[JackMarie]

License plates starting with 'ln' belong to the General Armament Department stationed in the Lanzhou Military Region, where 'l' stands for Lanzhou Military Region. The functions of license plates are: 1. To number and register information for each vehicle; 2. To identify the region to which the vehicle belongs; 3. To trace the owner and registration information of the vehicle based on the license plate. Types of license plates: 1. White represents military and police plates; 2. Blue represents ordinary small vehicles with fewer than 7 seats; 3. Yellow represents ordinary large vehicles; 4. Black represents foreign enterprise plates. A license plate number consists of 7 characters, with the first character being the abbreviation of the province, the second character being the abbreviation of the provincial city, and characters 3 to 7 being a combination of numbers and letters.