1. The bank card number consists of the following three parts: the issuer's identification code (BIN number), the issuer's custom bit and the check code.
2. The first 6 digits of the bank card number are the BIN number, which is the bank.
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The international organization for standardization (ISO) assigns the abbreviation $ number to all bank card organizations engaged in inter-bank transfer and exchange.
3. General: 4 prefix-visa; 5 prefix-MasterCard; 62- China UnionPay; 3 prefixes-express, JCB, etc.
4. The user-defined bit length of the issuing bank can be 6- 12, which generally includes the bank's internal branch identification. For example, 6-7 digits, 0 1 stands for Beijing card, and the rest will be generated immediately.
5. The last check code of the last card number has certain calculation rules for anti-counterfeiting. UnionPay standard cards meet the standards of China UnionPay, and use the BIN codes assigned by China UnionPay (currently 622 126-622925, 800 cards in total), which can be used within the payment network and protocol network of China UnionPay.
Is the last four digits of ICBC card mantissa unique? Definitely not.
Is the last number of the bank card unique? For example, the card of ICBC is.
Generally, short messages only give you the last number.
Is the 4-digit mantissa of WeChat's bank card known to be risky? The four-digit mantissa of my bank card has been read. Everyone else knows that the mantissa of bank cards is useless. Don't worry.
The text message shows that the bank card has been swiped, and it also shows whether the four-digit mantissa is a scam. You didn't open the SMS service. I took my ID card and went to the bank to check.
Do you know the mantissa of a bank card to find its owner? Honey! The last number you are talking about is an identification number, not a bank number, so every bank may have a bank card with the same last number. Every bank will definitely have the same card number and the same suffix! Maybe more than one! Industry, commerce and agricultural construction may all have such a tail number.
Want to know the card number of the bank card, see below. If the account is private, most people can't find it. I can't tell you even if I find out, or you can only ask at the counter!
More importantly, I want to tell you the composition of the card number.
If you want to distinguish between bank cards, the numbers in front are generally different, just like ID cards, and the area code of each place is different.
For example, 62220 stands for ICBC and supports UnionPay, and the top six of all bank cards are those that support UnionPay.
The sixth digit is the type of card. If it is "2", it means E-era card (debit card). The 7th 7- 10/0 is the regional number (city number of secondary branch) within ICBC. For example, 07 10 indicates the card in Fuxin, followed by the serial number.
The last bit is the check code, which is calculated by a complicated algorithm according to the previous 18 bits. Therefore, any wrong card number or account number will not be the same as the mobile phone number, but the card number is invalid and illegal. The algorithm of the check number is confidential to you. You won't spend hours calculating for yourself. It's no use figuring it out ... I hope it won't be blocked. I really hope I can help you. So it's no use asking the tail number!
For the last time, it's no use asking for the tail number! No one can help you!
I wish you a happy life again ~ If you have any questions, please ask.
If my answer solves your problem, please adopt it effortlessly. Thank you very much.
Can I find the card number of the bank card only by knowing the last four digits of the bank card? You can check the card number, and you can bring your valid second-generation ID card to the place where you handle the card for the relevant bank staff to help you inquire.
What is the bank card number with the suffix of 6908? The bank card only knows the mantissa and cannot be queried. Every bank and different places have cards with the same tail number.
Is the bank account unique? Yes, it is 100% unique.
Not only the bank card number, but also the passbook number.
Even the account number of the public account and the loan account number are unique.
The number and arrangement rules of accounts in each line are different.
Take China Construction Bank as an example.
Each branch has its own line number.
The points are particularly fine
And they are all approved by the People's Bank of China.
It is absolutely impossible to repeat the numbering.