1. At present, debit cards of major banks and most commercial banks are 19 digits, and credit cards are 16 digits, but there are some differences. For example, debit cards of China Merchants Bank, Huaxia Bank and China CITIC Bank are 16 digits, and debit cards of Industrial Bank are 18 digits.

For example, the card number of China Bank is 19 digits, and the first six digits of the bank card are called the bank card BIN number.

1, 62 1785 Great Wall Electronic Debit Card

2.62 1786 BOC wealth management VIP card

3.62 1788 BOC Wealth VIP Card

4.62 1758 secured debit card, etc. 62 17 starts with the Great Wall electronic debit card of China Bank.

2. The first six digits of a bank card are the issuer's identification number (BIN), which is the identification number of a card given to the issuer by the credit card organization. This number can provide information including which credit card organization this card belongs to, which bank this card was issued by, and what card this card is. ?

Thirdly, the last bit of the bank card is the check bit, which is a special value calculated by an algorithm and used for card number verification. From the 7th to the 2nd from the bottom, it is used by the issuing bank, including the location of the bank (the city where the issuing bank is located) and the large sequence of card numbers. , but the specific content is defined by the issuing bank.

4. The bank card with the character "4" in the 4.BIN number belongs to the VISA card organization, the bank card with the character "5" belongs to the MasterCard organization, and the bank cards with the characters "9", "62" and "60" belong to China UnionPay. The UnionPay cards with the characters "62" and "60" meet the international standards and can be used abroad, which is also China UnionPay.

Extended data

Bank card number refers to the number code on the hard card issued by each bank, and the business number segment between commercial banks has unified regulations. The first six digits of the card number represent the identification code of the issuing bank, also called BIN number, and different BIN numbers represent different bank card organizations and card levels.

Once the bank card transfers money, the basic information, amount and transaction status of the customer will be transmitted to the central bank in time, and a large amount of information such as money laundering prevention and statistics will be summarized in the central bank database, which is the medium of unified financial management.

Bank cards are useless except for recording customer information and capital flow information. Magnetic, easy to degauss with mobile phone.

(Refer to Baidu Encyclopedia Bank Card Number)