BIN 557731 — Lookup & Card Details

Name: Kripicard Instant Crypto Card
Brand: Kripicard
Availability: InStock
Rating: 4.9 (1284 reviews)

Check bank, country, card type, and issuer information for BIN 557731.

What is BIN 557731?

BIN 557731 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.

Payment processors read these digits on every transaction: they drive routing decisions, currency handling at checkout, fraud scoring and card-product acceptance rules. BIN 557731 carries no personal information: it maps to an issuing institution and card program, never to an individual account or person.

mastercard

BIN 557731, digit by digit

Each position in a BIN carries defined meaning under ISO/IEC 7812. Here is how the 6 digits of 557731 break down.

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

5Issuer range digit 2 of the 6-digit prefix

7Issuer range digit 3 of the 6-digit prefix

7Issuer range digit 4 of the 6-digit prefix

3Issuer range digit 5 of the 6-digit prefix

1Issuer range digit 6 of the 6-digit prefix

BIN 557731 — frequently asked questions

Which bank issued BIN 557731?

The live registry lookup doesn't currently return a bank name for BIN 557731. 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 557731 run on?

BIN 557731 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 557731?

Yes. BIN 557731 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.

Need a working virtual card right now?

Kripicard issues Visa and Mastercard BINs in seconds. Fund with USDT, spend globally — ads, subscriptions and online purchases, all on day one.

Get Your Virtual Card

Developer? Issue cards via API.

Programmatically create, fund and freeze cards. Full REST API, webhooks and sandbox — built for media-buying agencies, marketplaces and fintechs.

Get API Access

Related BIN ranges

Browse neighboring BINs — useful when pinpointing a card range.

Lower BINs

557721 557722 557723 557724

Explore Kripicard

Discover our complete suite of crypto virtual card solutions and services