The card number of a bank card is the number that identifies the information of the card issuer and the cardholder, and consists of the following three parts: the identification code (BIN number) of the card issuing bank, the user-defined bit of the card issuing bank, and the check code.

1, the first 6 digits of the bank card number can tell the card type, representing the identification code of the issuing bank, also called BIN number. Different BIN numbers represent different bank card organizations and card levels.

Bank cards with the word "4" in the BIN number belong to the VISA card organization;

Those with "5" belong to MasterCard;

Those beginning with "9", "62" and "60" belong to China UnionPay;

UnionPay cards beginning with "62" and "60" are UnionPay standard cards that meet international standards and can be used overseas.

2.7- 10 people represent the card issuing area; ?

3. The number 1 1 represents the card type;

4. The serial number 12- 18 is the card issuing sequence number;

5. 19 bit is the check bit.

Extended data:

1. At present, the main types of ICBC credit cards are: Peony International Credit Card, Peony Credit Card and Peony Credit Card.

1. ICBC credit cards are divided into: Peony Visa Card, Peony MasterCard and Peony American Express Card by brand;

2. According to the credit rating, it is divided into: platinum card, gold card and ordinary card;

3. According to the issuing object, it is divided into business cards and personal cards, in which personal cards are divided into main cards and auxiliary cards.

Second, the function of the card

1. Fully realize paperless trading.

Most of the bills and documents used before were replaced by electronic checks, electronic bills of exchange and electronic receipts; The original paper money was replaced by electronic money, that is, electronic cash, electronic wallet and electronic credit card; The original paper document is sent by mail through the data communication network.

2. The service is convenient, fast, efficient and reliable.

Through online banking, users can enjoy convenient, fast, efficient and reliable all-round services. You can use the online banking service whenever and wherever you need it.

3. Low operating cost.

Due to the adoption of virtual reality information processing technology in online banking, online banking can reduce the number of business points without reducing the original business volume.

4, simple and easy to use.

Online e-mail communication is also very flexible and convenient, which is convenient for communication between customers and banks and within banks.

References:

Baidu encyclopedia -BIN number

References:

Baidu Encyclopedia-ICBC Credit Card