1. First get someone else's bank card number, log in to CCB official website or download the CCB mobile APP, and find the function of "bank inquiry" in the column of "inquiry" or "service".

2. Then on the query page of the bank, you need to enter the bank card number of the person and fill in the corresponding security verification information, such as name and ID number. Generally, the verification information is required to be consistent with the bank card information to ensure the accuracy and security of the inquiry.

3. After the final input, click the "Query" button, and the system will automatically display the bank information of the bank card, including the name and location of the bank.