1125 is from Nantong

The following are the starting account numbers of other banks

China Construction Bank starts with 4367, Bank of China starts with 6013, Agricultural Bank of China starts with 6227, and Bank of Communications It starts with 4055, China Merchants Bank starts with 439225, Postal Savings Bank starts with 6064, China Everbright Bank starts with 9003, China CITIC Bank starts with 5182, Shenzhen Bank starts with 6225, China Guangfa Bank starts with 9062, and Industrial Bank starts with 4512.

Nowadays, the debit cards of all banks and most commercial banks are basically 19 digits, and the credit cards are basically 16 digits, but a small number of them are different, such as China Merchants Bank, Hua Xia Bank, and CITIC Bank. The debit card has 16 digits and the Industrial Bank debit card has 18 digits. The first 6 digits of the bank card are the issuing bank identification number (BIN), which is the identification number of a certain card given by the credit card institution to the issuing bank. The data provided by this number covers which credit card institution the card belongs to, and which credit card institution the card belongs to. Which bank issued it and what type of card is this card? The last digit of the bank card is the check digit, which is a special value calculated according to a certain algorithm and used for card number verification. The 7th digit to the 2nd to last digit are used by the card-issuing bank, and include the location of the bank where you opened the account (card-issuing area), the card number sequence, etc., but the details are defined by the card-issuing bank.