What are the four card numbers starting with 8 in the CCB card?

The card number of China Construction Bank does not start with 8. According to the inquiry of China Construction Bank official website, the bank card numbers issued by the head office of China Construction Bank start with UnionPay card, Visa card and MasterCard respectively, and the settlement institutions are different according to the card types. UnionPay card number starts with 62, Visa card number starts with 42 or 43, MasterCard card card number starts with 52 or 55, and there is no card number starting with 8.