What does the social security card number ae mean at the beginning?

Explain that the social security card is a social security card in Shanghai.

The first letter of the social security card number is determined according to the information of the social security card. The initials of social security cards in different regions are different, which needs to be distinguished according to the initials of social security cards in different regions.

Medical insurance card refers to social medical insurance, which is a social insurance system established by the state for workers. Social medical insurance is a social insurance system established by the state and society according to certain laws and regulations to provide basic medical needs for workers within the scope of protection.