Bank card number refers to the number code on the hard card issued by each bank, and the business number segment between commercial banks has unified regulations. The first six digits of the card number represent the identification code of the issuing bank, also called BIN number, and different BIN numbers represent different bank card organizations and card levels.
The head office of China Construction Bank, located at No.25, Beijing Financial Street, is a large state-owned commercial bank managed by the central government and a national vice-ministerial unit.
The main business areas of China Construction Bank include corporate banking, personal banking and treasury business, with branches and subsidiaries in 29 countries and regions, and subsidiaries in many industries such as funds, leasing, trust, life insurance, property insurance, investment banking, futures and pension.