BIN là gì: vì sao sáu chữ số đầu quan trọng
BIN quyết định cách thẻ được xử lý khi thanh toán. Đây là cách chọn đúng cho quảng cáo, đăng ký và chi tiêu hằng ngày.
The first six digits decide a lot
A BIN (bank identification number) is the first six digits of a card number. It tells the payment network who issued the card, what kind of card it is — business, prepaid, signature, world — and which country the issuer sits in. Acquirers and risk engines use it heavily when deciding whether to approve a transaction.
Why ad platforms care
Meta, Google and TikTok score new payment methods aggressively. A BIN that has seen a lot of previous chargebacks in the ad category can be declined before anyone looks at your account. A clean business-tier BIN often goes through where a consumer prepaid BIN fails. That is why we offer nine, and why media buyers test a few before committing a campaign budget.
How to choose one
- For cold ad accounts, start with a business or corporate BIN.
- For subscriptions and trials, a prepaid BIN is usually enough.
- For mobile wallets, pick a BIN whose tier is designed for tokenisation.
- If a merchant declines a card that works elsewhere, try a second BIN before assuming the merchant is the problem.
What a BIN does not do
A BIN cannot fix a mismatched billing address, an over-limit balance or a merchant that blocks prepaid cards outright. Nor does changing BINs make a fraudulent transaction legitimate. Think of it as a fit between your use case and the issuer profile — not as a bypass.