How to check the Bank of China account opening bank:

1. Query the service through the Bank of China WeChat official account. In the official account, click "Micro Finance", then click "My Debit Card--Account Bank Inquiry" to view the bank card account bank.

2. Inquire through the Bank of China app. First log in, then select "Account Management", then click on the bank card you want to query. After entering, click on the upper right corner of the interface, and then click "Account Details" to see the bank card information of the bank card.

3. Dial Bank of China customer service hotline 95566 and follow the voice prompts to query the bank where the account is opened.

4. Inquire through personal online banking. First log in to personal online banking, click "Bank Account" in the upper left corner, click "Account Details" on the left after entering, select the bank card you want to query, and click "Query" to view the account bank information.