Hello, the top four personal VISA cards of China Merchants Bank are 4392, and the top four personal MasterCard cards are 5187; The top four personal platinum credit cards are 4391; The first four digits of business credit card VISA card are 4792, and the first four digits of business credit card MASTER card are 5525. (You can consult the credit card service information of China Merchants Bank online through QQ or WeChat. Method 1: Search 4008205555 among QQ corporate friends, and add China Merchants Bank Credit Card Center as a friend; Method 2: Search for "cmb4008205555" on WeChat, and pay attention to China Merchants Bank Credit Card Center)