CCB credit card numbers are all 16 digits. Generally, the first six digits can be used to determine the approximate card level. The last 10 digits are randomly generated and have nothing to do with the account opening bank. In other words, the card number and the account opening bank are completely different. Not hooked.

Generally UnionPay single-currency cards begin with “62”

UnionPay-VISA dual-currency cards and VISA single-label cards begin with 4

UnionPay -MasterCard dual currency card starts with 5

UnionPay-JCB dual currency card and JCB single label card starts with 3