How to check the bank number of a bank?

1. Call the customer service phone of the bank to which the bank card belongs.

2. Take China Merchants Bank as an example. You can check it through China Merchants Bank's mobile banking, and all major mobile app stores have downloads. Specific query methods are as follows:

1. After China Merchants Bank opens its mobile phone, click the symbol in the red box at the top of the page below, as shown in the figure.

2. Then select the "Bank Inquiry" option, as shown in the figure.

3. Then enter the bank card number to be queried, as shown in the figure.

4. In this way, the bank number of the bank card can be found, as shown in the figure.