Generally, credit card numbers have 16 digits, while debit card numbers range from 16 to 19 digits depending on the bank.
Bank cards are divided into three types: debit card, quasi-credit card, and credit card. Bank cards generally carry logos such as UnionPay, Visa, Master, and JCB.
Generally, cards starting with 6 are UnionPay cards, cards starting with 4 are cards carrying the Visa logo, cards starting with 5 are cards carrying the Master card, and cards starting with 3 are cards carrying the JCB logo. .
The first few digits of cards with the same logo from a bank are the same. For example, for China Merchants Bank, the card with the UnionPay logo starts with 62258, and the card with the Visa logo starts with 4392. Those with the Master logo start with 5186, and those with JCB start with 3568.
The debit card and credit card of another bank generally have different digits. For example, in China Construction Bank, the debit card starts with 4367, which is 19 digits, and the credit card with the Visa logo also has 19 digits. Starts with 4367, but is 16 bits. Extended information
During the recycling period:
Revolving credit generally refers to the credit limit of a credit card that can be recycled. As long as the customer can repay in time (including repayment according to the minimum repayment method) after each use of the limit, it can be used repeatedly and does not need to be applied before each use. Revolving credit is the inherent attribute and main function of credit cards, which brings convenience to cardholders.
Interest calculation for revolving credit:
Each consumption amount in the previous statement is the interest-bearing principal, from the date the account is recorded until the account is paid off The number of interest accrual days is the number of days to accrue interest; the revolving credit interest rate is uniformly stipulated by the People's Bank of China, with a daily interest rate of 5/10,000, and compound interest is calculated on a monthly basis. Interest on the revolving credit will be stated on your next bill.
China Construction Bank official website-credit card