Visa Credit Cards: Numbers, Levels, Security & Tools

What Visa does

Visa is a payment network, not a bank. It connects issuing banks, which give cards to customers, with acquiring banks, which process payments for merchants. The issuer decides your credit limit, interest rate and fees; Visa sets the network rules, security standards and processing between the two sides.

Visa card numbers and BIN ranges

Every Visa card number starts with the digit 4. The first six to eight digits form the BIN (Bank Identification Number), also called the IIN, which identifies the issuing bank, the card type and often the country. The remaining digits identify the account, and the final digit is a Luhn check digit.

Visa card numbers can be 13, 16 or 19 digits long. Sixteen digits is by far the most common today; 13-digit numbers are a legacy format, and 19-digit numbers are used by some newer and prepaid products.

Visa card levels

Visa card levels describe a tier of benefits. The exact benefits are set by the issuer and differ between countries, so always check the card's own terms.

Visa Secure (3-D Secure)

Visa Secure is Visa's version of the EMV 3-D Secure protocol for online payments. When you pay online, the merchant can ask your issuer to confirm that the payment really comes from you.

Many payments are approved silently using device and transaction data. Riskier ones trigger a challenge, such as approving the payment in your banking app or entering a one-time code. Never share that code with anyone who contacts you.

Tokenization and contactless payments

Tokenization replaces your real card number with a different number, called a token, that only works in a specific device, wallet or merchant. If a token is stolen it is of little use elsewhere, and your physical card does not need to be replaced.

Contactless payments use the chip and a short-range radio connection. Each tap creates a one-time cryptogram, so data captured from a single transaction cannot simply be replayed. Mobile wallets combine contactless with tokenization and device unlock.

Acceptance around the world

Visa cards are accepted by a very large number of merchants and ATMs worldwide. Acceptance still depends on the merchant, the card type and local rules: some merchants decline certain prepaid cards, and fees for foreign transactions or cash withdrawals are set by your issuer.