The card at the beginning of CCB 6253 is a UnionPay single-label credit card, which is suitable for merchants and ATMs that overdraw in China and support UnionPay settlement abroad.

In addition, CCB 4835 started with VISA single identification credit card, which is suitable for overseas use; Cards beginning with 5 1 10, 5360, 53 16 and 5324 are MasterCard credit cards; Savings cards begin with 4367, 6227, etc.