BIN 550691 — Lookup & Card Details

Check bank, country, card type, and issuer information for BIN 550691.

What is BIN 550691?

BIN 550691 is on the Mastercard network.

A Bank Identification Number (BIN, or Issuer Identification Number / IIN) is the first 6 to 8 digits of any payment card. It tells the payment network which institution issued the card, what kind of card it is, and where it was issued. The card runs on the Mastercard network.

Mastercard is a global network whose BINs fall in the 51–55 and 2221–2720 ranges, accepted at merchants worldwide.

In practice this prefix is what a checkout sees first — risk engines score it, gateways route on it, and merchants use it to decide whether to accept the card class at all. BIN 550691 is institutional data under the ISO/IEC 7812 standard — looking it up reveals the issuing program, nothing about any cardholder.

mastercard

BIN 550691, digit by digit

Each position in a BIN carries defined meaning under ISO/IEC 7812. Here is how the 6 digits of 550691 break down.

5Major Industry Identifier — Banking & financial (Mastercard, Maestro)

5Issuer range digit 2 of the 6-digit prefix

0Issuer range digit 3 of the 6-digit prefix

6Issuer range digit 4 of the 6-digit prefix

9Issuer range digit 5 of the 6-digit prefix

1Issuer range digit 6 of the 6-digit prefix

BIN 550691 — frequently asked questions

Which bank issued BIN 550691?

The live registry lookup doesn't currently return a bank name for BIN 550691. The prefix resolves to the Mastercard network, and issuer details may appear as registries update — newly issued and virtual ranges often lag.

What card network does BIN 550691 run on?

BIN 550691 runs on the Mastercard network. Mastercard is a global network whose BINs fall in the 51–55 and 2221–2720 ranges, accepted at merchants worldwide.

Is it legal to look up BIN 550691?

Yes. BIN 550691 is public infrastructure data under the ISO/IEC 7812 standard — it identifies the issuing program, not any cardholder. No personal or account data is involved in a BIN lookup.

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Related BIN ranges

Browse neighboring BINs — useful when pinpointing a card range.

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