1. China Construction Bank: 4367 or 6227;

2. Agricultural Bank: 6228 or 9559;

3. ICBC: 6222 or 9558;

4. China Bank: 6216, 4563, 613;

5. Postal Bank: 6221 or 621;

6. Bank of Communications: 614 or 5218;

7. China Everbright Bank: 6282 or 3568;

8. Minsheng Bank: 6226 or 4218;

9. Industrial Bank: 6229 or 4864;

1. Ping An Bank: 629 or 9988.

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

the first six digits of a bank card are the card-issuing bank identification number (BIN), which is the identification number of a card given to the card-issuing bank by the credit card organization. This number can provide information including which credit card organization this card belongs to, which bank this card is issued by and what kind of card this card is.

the card issued by "China unionpay" must start with 62, while the card numbers of people who use Visa credit cards in China will start with 4, and those who use Matercard will generally start with 51, 52, 53, 54 and 55.

meaning of each digit of the bank card number:

the first six digits are: Issuer Identification Number (IIN).

note: the previous bank identification number (bin) has been replaced by IIN.

The first digit is the Major Industry Identifier (MII).

● The middle digit is: personal account number identification (starting from the seventh digit of the card number)

The middle digit is defined by the issuing bank and generally consists of 6-12 digits. You can use up to 12 digits.

the rules for identifying individual account numbers are different for each bank. Some banks will include code information such as branches, sub-branches and savings outlets in this part. Some banks may not be so detailed and will use natural serial number.

● The last digit is the check digit

Calculate the last digit of the credit card or debit card with the number before the card number by Luhn algorithm.

Bank is a financial institution established in accordance with the law to engage in money and credit business, which is the product of the development of commodity money economy to a certain stage.

Banks are one of the financial institutions. Banks are classified into central banks, policy banks, commercial banks, investment banks and the World Bank, and their responsibilities are different.

Central Bank: That is, the People's Bank of China is the central bank of China.

State-owned policy banks: including The Export-Import Bank of China, China Agricultural Development Bank and China Development Bank.

State-owned commercial banks: including China Industrial and Commercial Bank, China Agricultural Bank, China Bank, China Construction Bank, China Postal Savings Bank and Bank of Communications.

investment banks: including Goldman Sachs, Morgan Stanley, Citigroup, Wells Fargo, UBS Group AG, Societe Generale, etc.

World Bank: It is used to help countries overcome poverty, and various institutions play a unique role in the mission of alleviating poverty and improving living standards.