The citizen card number in the main city of Hangzhou usually starts with the letter A, and the citizen card number in Yuhang District starts with the letter B or C. In addition, the citizen card in Yuhang District will be marked with the word "Yuhang" to show the difference.
The difference between these numbers is mainly to facilitate the identification and management of citizens when using citizen cards, and at the same time, it can help the government to better understand the needs and conditions of citizens and provide better services to citizens.
It should be noted that the citizen card in the main city of Hangzhou and the citizen card in Yuhang District are not much different in function and use except for the different numbers.