The first three digits represent the acquiring bank, and this code is consistent with the bank code in the personal xy report. The fourth to seventh digits are administrative division codes, which are divided into two versions. The old version is mainly used for banking machines, usually the first four digits, and the new version is mainly used for third-party acquiring institutions.
Eight to eleven digits, these four digits are the most critical. These four digits are pos merchant type codes, indicating UnionPay MCC codes, which are merchant industries. This code is directly related to whether the credit card has points. The last four digits are the serial number set by the payment institution.
Extended data:
Matters needing attention in using POS machine:
1. The acquiring merchant who pays the bank card must sign the relevant written agreement with the payment and register the merchant information and business associated account before using it. Only POS machines related to our services are obtained. Enterprises and individuals who are not registered in our company have no right to enjoy our bank card acquiring service, and the financial losses caused by unauthorized use have nothing to do with our company. Registration information and business-related accounts can be inquired through our merchant management platform or by calling 400.
2. Prevention of illegal operation: The following acts of merchants using the payment bank card acquiring service are illegal operations, and the merchants will bear the financial losses and corresponding legal responsibilities: altering the contracted amount, opening the bill, washing the bill, cashing in, transferring the plane, accepting the credit card listed in the stop payment list, using it beyond the authorized limit, not carefully checking the signature and validity period of the credit card, and returning the cash.
3. Keep the transaction documents properly: According to the relevant national regulations, the transaction signing and purchasing documents and original vouchers related to the bank card acquiring service transaction shall be kept for at least 1 year. If the transaction documents are improperly kept, lost or overdue, it will cause financial losses to POS merchants.
Baidu encyclopedia -pos machine
Baidu encyclopedia -MCC code