BIN Range Lookup

Card networks are allocated blocks of leading digits, and they sub-allocate ranges within those blocks to issuers. The reference tables below cover every major network. To find the specific issuer inside a range, use the lookup:

Enter BIN:Lookup

Real production data — the same records the API returns on the free tier.

Network	BIN / IIN ranges	Card number length	Records held
Visa	4	13, 16, 19	1,611,687
Mastercard	51–55, 2221–2720	16	1,469,935
Diners Club	300–305, 3095, 36, 38–39	14, 16	43,319
American Express	34, 37	15	19,983
UnionPay	62	16–19	20,398
Discover	6011, 622126–622925, 644–649, 65	16, 19	17,516
JCB	3528–3589	16–19	9,572

Ranges are as published by the networks. Record counts are measured from our production dataset of 3,289,919 BINs.

Mastercard is the range most often got wrong, because it has two. The original allocation is 51–55. The 2-series, 2221–2720, was introduced to expand supply and has been live for years.

Both are equally valid. A card beginning 2221 through 2720 is a Mastercard. Any validation that tests for a leading 5 — a regex like ^5[1-5] is the usual culprit — will reject a large and growing share of legitimate Mastercards. In our dataset the 2-series is already about 6% of all Mastercard records.

Note that the 2-series boundaries are four digits, not two. 22 is too coarse: 2221 is Mastercard, but 2220 is not, and 2721 is outside the range.

Discover holds four discontinuous blocks: 6011, the range 622126–622925, 644–649, and 65. Two are four digits wide, one is a six-digit block, and one is two digits.

That mix is why Discover identification goes wrong so often — a rule written for one block silently misses the others, and the 622126–622925 block in particular is easy to omit because it requires comparing six digits numerically rather than matching a prefix. Anything inside 65 also needs care: Diners Club and Elo hold ranges that begin 65 too.

A range tells you the scheme. It cannot tell you the bank, the country, or whether the card is credit or debit — and this is where range-matching is most often over-trusted.

A single 6-digit range is frequently subdivided among several institutions. In our dataset around 6.6% of records resolve to a different issuer, country, or funding type at 8 digits than at 6. Range logic gets you the network; only a BIN lookup at 8 or more digits gets you the issuer. See the 8-digit BIN checker for a worked example.

Beyond the seven major networks, our dataset holds ranges for schemes that sit inside blocks resembling other networks:

• Maestro — 50, 56–58, and blocks in 6
• Elo (Brazil) — blocks inside 50, 509, and 65
• RuPay (India) — 60, 65, 81, 82
• UATP — the entire 1 block, used for corporate air travel
• girocard, Dankort, Cirrus, EBT, and private-label ranges

Co-branded ranges route on two networks and appear in the data as combinations — Mastercard/UnionPay, Visa/UnionPay, Visa/Dankort, Discover/RuPay. If your logic assumes one scheme per prefix, these are where it breaks.

What is the Mastercard BIN range?

Mastercard uses two ranges: the original 51–55, and the 2-series 2221–2720 introduced to expand supply. Both are live, and a card starting 2221 through 2720 is as much a Mastercard as one starting 51 through 55. Systems that only check for a leading 5 will reject valid Mastercards.

What is the Visa BIN range?

Every Visa card number begins with 4. Visa holds the entire 4 range, which is why it is the largest single allocation — 1,611,687 records in our dataset, about 48.8% of the total.

What are the Discover card prefixes?

Discover uses 6011, the block 622126–622925, the range 644–649, and 65. It is the most fragmented allocation of the major networks, which is why Discover BIN identification is more error-prone than most.

What is the difference between a BIN range and a BIN?

A BIN range is a block of prefixes allocated to a network or issuer. A BIN is a specific prefix within one. Ranges tell you which network a card belongs to; only a full BIN lookup tells you the issuing bank, funding type, and country.

Can two networks share a BIN range?

Ranges do not overlap between networks, but co-branded cards are issued that route on two networks — our dataset holds Mastercard/UnionPay, Visa/UnionPay, Visa/Dankort, and Discover/RuPay combinations. Regional schemes such as Elo, RuPay, and Maestro also sit inside blocks that look like other networks at first glance.

How do I look up which issuer holds a specific range?

Enter 6 to 11 digits in the tool on this page. Network ranges identify the scheme; the issuer within a range needs a BIN lookup, because a single 6-digit range is often subdivided among several institutions.