What are the Mastercard BIN ranges?

Mastercard uses two BIN ranges: the classic 51-55 series and the newer 2-series covering 2221-2720, activated in 2017. Cards from both ranges are equally valid Mastercard cards.

What numbers do Visa cards start with?

All Visa card numbers start with the digit 4.

What are the American Express BIN ranges?

American Express cards start with 34 or 37 and have 15-digit card numbers.

Card BIN Ranges by Network: Visa, Mastercard 2221-2720 & 51-55, Amex

Network	BIN / IIN ranges	Notes
Visa	4	All Visa cards start with 4. Includes Visa Electron (4026, 417500, 4508, 4844, 4913, 4917).
Mastercard	51-55 and 2221-2720	The classic 51-55 series plus the 2-series (2221-2720) activated in 2017 to expand capacity. Both are equally valid Mastercard BINs.
American Express	34 and 37	15-digit card numbers, unlike the 16 digits of Visa and Mastercard.
Discover	6011, 622126-622925, 644-649, 65	The 622126-622925 block overlaps the UnionPay range through a network partnership.
JCB	3528-3589	The Japanese network; widely co-branded internationally.
Diners Club	300-305, 3095, 36, 38-39	36 is Diners Club International; 38-39 cards are processed as Mastercard in North America.
UnionPay	62	China UnionPay; some ranges are processed via the Discover network outside Asia.
Maestro	50, 56-69 (selected)	Mastercard's debit brand; ranges are scattered and being migrated to standard Mastercard debit BINs.
Mir	2200-2204	The Russian domestic payment network.
RuPay	60, 65, 81, 82, 508	The Indian domestic network; some ranges overlap Discover through a partnership.

Network

BIN / IIN ranges

Notes

Visa

All Visa cards start with 4. Includes Visa Electron (4026, 417500, 4508, 4844, 4913, 4917).

Mastercard

51-55 and 2221-2720

The classic 51-55 series plus the 2-series (2221-2720) activated in 2017 to expand capacity. Both are equally valid Mastercard BINs.

American Express

34 and 37

15-digit card numbers, unlike the 16 digits of Visa and Mastercard.

Discover

6011, 622126-622925, 644-649, 65

The 622126-622925 block overlaps the UnionPay range through a network partnership.

JCB

3528-3589

The Japanese network; widely co-branded internationally.

Diners Club

300-305, 3095, 36, 38-39

36 is Diners Club International; 38-39 cards are processed as Mastercard in North America.

UnionPay

China UnionPay; some ranges are processed via the Discover network outside Asia.

Maestro

50, 56-69 (selected)

Mastercard's debit brand; ranges are scattered and being migrated to standard Mastercard debit BINs.

Mir

2200-2204

The Russian domestic payment network.

RuPay

60, 65, 81, 82, 508

The Indian domestic network; some ranges overlap Discover through a partnership.

Why Mastercard has two ranges: 51-55 and 2221-2720

For decades every Mastercard began with 51 to 55. As available numbers ran low, Mastercard activated the 2-series in 2017: BINs from 2221 through 2720 route identically to the classic range. Any system that validates cards by first digits must accept both, which is exactly why searches for the official ranges are so common among developers and payment teams.

BIN, IIN and what the first digits mean

The first 6 to 8 digits of a card number form the Bank Identification Number (BIN), formally called the Issuer Identification Number (IIN) in ISO/IEC 7812. The very first digit is the Major Industry Identifier: 3 is travel and entertainment (Amex, JCB, Diners), 4 and 5 are banking networks (Visa, Mastercard), 6 is merchandising and finance (Discover, UnionPay). Everything after the BIN identifies the individual account, ending in a Luhn check digit.

Check a specific BIN

These ranges tell you the network only. To see the issuing bank, country and card type for an exact BIN, use the free BIN checker or browse the bank directory.

Look Up Any BIN

Card BIN Ranges by Network

Why Mastercard has two ranges: 51-55 and 2221-2720

BIN, IIN and what the first digits mean

Check a specific BIN

Look Up Any BIN

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