What's the difference between a plus card number and d plus card number?

What's the difference between a plus card number and d plus card number? Hello, dear, the social security card personnel identification number is * *12, the first three are letters, the first two of the three letters represent provinces, for example, the first two of Jiangsu Province are *JS*, and the third letter represents cities, which is generally consistent with the license plate number of cities. For example, the license plate number of Nanjing, Jiangsu Province is * Asu *, and the third letter is A. The first three letters of the social security card issued by Nanjing are It, which is a set of numbers indicating where to issue the card, such as: Z05 1 19, P32780, etc. , which means that 5 1 19 cards are issued starting with Z, and 32,780 cards are issued starting with P. The medical insurance card (hereinafter referred to as the medical insurance card) is a special card for personal account of medical insurance in our city. With the personal identity card as the identification code, the detailed information such as personal identity card number, name, gender, expenditure and consumption of account funds are stored and recorded. I hope I can help you. I wish you a happy life and good health!