BIN 521544
BIN 521544 belongs to a Mastercard credit b2b card issued by Optal Financial, LTD. in United Kingdom.
| BIN / IIN | 521544 |
|---|---|
| Card brand | Mastercard |
| Card type | Credit |
| Card level | B2b |
| Prepaid | No |
| Issuing bank | Optal Financial, LTD. |
| Country | 🇬🇧United Kingdom(GB) |
What this BIN tells you
A card that starts with 521544 runs on the Mastercard network, is a credit card, was issued by Optal Financial, LTD. and comes from United Kingdom. Payment systems read these first six digits before anything else: to route the transaction to the right network, to apply interchange and currency rules, and to flag mismatches between the card's country and the buyer's location.
A BIN identifies a range of cards, never one account. Knowing it tells you nothing about any individual cardholder. To test how your checkout handles Mastercard cards, use Mastercard test numbers for form validation, and your gateway's official sandbox cards for payment flows.
BIN 521544 FAQ
Which bank issued BIN 521544?
BIN 521544 is issued by Optal Financial, LTD. in United Kingdom.
Is BIN 521544 a credit or debit card?
BIN 521544 is a credit card on the Mastercard network.
What country is BIN 521544 from?
Cards starting with 521544 are issued in United Kingdom (GB).
Can BIN 521544 identify a cardholder?
No. A BIN covers every card in a range from one issuer. It identifies the bank, brand, type and country, not an individual account.