1. Customer service telephone inquiry: The cardholder takes the initiative to call the credit card customer service telephone number of the issuing bank, and then follows the prompts to connect to the manual service, and then submits an application to inquire the card number to the customer service staff with the reserved mobile phone number and ID number. You can check it.

2. Inquiry at the branch counter: Cardholders can also take their ID cards to the card-issuing bank branches and explain to the staff that they want to check the card number, and then they can check all bank card numbers under the name of the ID card. .

3. Official website query: Cardholders can log in to the official website of the issuing bank, find the credit card column, and click on the personal account to see the credit card number and other information.