What are the differences between Shanghai license plates Hu A, Hu B, Hu C, Hu D, and Hu H?

[MacXavier]

There are differences in numbering time and driving areas. Below are the relevant introductions: Numbering time: For license plates with the same driving area, the later the letter appears in the alphabet, the later the numbering time. That is, the order from earliest to latest in numbering time is Hu A, Hu B, Hu C, Hu D. Driving areas: Hu A, Hu B, and Hu D license plates are for urban areas of Shanghai; Hu C license plates are for suburban areas and cannot enter the Outer Ring Road. License plate: The first character of a license plate is a Chinese character representing the provincial-level administrative region where the vehicle is registered, which is the abbreviation of provinces, municipalities directly under the central government, and autonomous regions; the second character is an English letter representing the prefecture-level administrative region where the vehicle is registered, which is the letter code for prefecture-level cities, regions, autonomous prefectures, and leagues. Generally, the ranking is determined by the provincial vehicle management office based on the status of each prefecture-level administrative region (the letter 'A' is the code for the capital, provincial capital, or central urban area of a municipality directly under the central government, and the subsequent letters are not ranked in any particular order).