Inquiring about the attribution of bank cards can be done online through the inquiry website, or by calling the customer service hotline of bank credit cards and inquiring through bank outlets.

Taking China Agricultural Bank as an example, the inquiry methods mainly include:

1. Dial the corresponding number "95599" according to the customer service phone number on the surface of the ABC card. After accepting it, the transfer personnel need to provide the identity card information and name of the head of the household and the account number of the Agricultural Bank of China card in order to inquire about the bank information of the Agricultural Bank of China card.

2. Of course, you can also go directly to the counter of the local Agricultural Bank for consultation. Generally, you need to provide ID card information and ABC card to get specific bank information.

3. Inquire through online banking. First log in to the online bank of Agricultural Bank of China, and then insert KBao. There are related options in the page to view the bank information.

In addition, if online banking is not available, you can log in through online banking of ABC and select the card number. Generally, the first transaction after card opening will be in the bank, just look at the name of the first transaction bank.

If it is your own card, you can check it through mobile banking, telephone banking and SMS banking. Other people's cards can be identified by looking at the north side of the card. Generally, there will be the first few letters of the card issuer's abbreviation pinyin.