CCB Dashanbai Credit Card starts with 4, 5, 37.

CCB Dashan Baishi Long Card is an exclusive platinum credit card dual-currency card. You can choose UnionPay and Visa or UnionPay and Mastercard dual-currency cards. Dual currency card is a credit card with both RMB account and foreign currency account. Most of the card numbers of this type of card start with 4, 5, or 37. There is a UnionPay logo in the upper right corner of the front of the credit card, and a VISA or Master English logo in the lower right corner of the front of the credit card. They can be used in China or around the world. There is no need to exchange local currency when using it abroad, just swipe the card directly for consumption.