BIN 521881
BIN 521881 belongs to a Mastercard credit card issued by Capital Ok Co., LTD. in Thailand.
| BIN / IIN | 521881 |
|---|---|
| Card brand | Mastercard |
| Card type | Credit |
| Card level | Not specified |
| Prepaid | No |
| Issuing bank | Capital Ok Co., LTD. |
| Country | 🇹ðŸ‡Thailand(TH) |
What this BIN tells you
A card that starts with 521881 runs on the Mastercard network, is a credit card, was issued by Capital Ok Co., LTD. and comes from Thailand. 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 521881 FAQ
Which bank issued BIN 521881?
BIN 521881 is issued by Capital Ok Co., LTD. in Thailand.
Is BIN 521881 a credit or debit card?
BIN 521881 is a credit card on the Mastercard network.
What country is BIN 521881 from?
Cards starting with 521881 are issued in Thailand (TH).
Can BIN 521881 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.