What are the first 9 digits of the 12-digit Beijing social security card number?

The question is "What is the first 9 digits of the 12-digit Beijing social security card number?" It is generated based on the place of issuance, the unit of issuance and the order of issuance of the card. According to the Beijing Social Security Network, the first 9 digits of the social security card number is composed of 9 digits, which are generated according to the place of issuance, the unit of issuance, the order of issuance, etc. In the 12-digit number of the Beijing Social Security Card, the first 9 digits are the card number of the social security card, and the last 3 digits are the check digit.