At present, the bank card number of our bank card is pure numbers, excluding letters, and the number of digits of the card number is as follows: 15 passbook account number.

16 digit card number: all-in-one card with UnionPay or VISA/MASTERCard logo.

12 old card: 4-digit city area code +8-digit account number. If the city area code is less than 4 digits, the first digit will be supplemented by 0.

At present, the credit card number of our bank is 16 digits except the card number of American Express. Please contact credit card customer service for details.

(Reply time: 2065438+July 29th, 2009. Please refer to the latest business changes announced by China Merchants Bank in official website).