About BIN 521003
The Bank Identification Number 521003 identifies cards issued by Kokunai Shinpan Co., LTD. on the Mastercard network in Japan. Cards in this range are credit cards. Card numbers starting with these digits are routed to the issuing institution during payment authorization.
A BIN (Bank Identification Number) - also called an IIN (Issuer Identification Number) - is the first 6-8 digits of a payment card. It reveals the card network, issuer, country, and funding type, but never identifies an individual cardholder or account.
Frequently Asked Questions
What bank issued BIN 521003?
BIN 521003 is issued by Kokunai Shinpan Co., LTD. in Japan.
What card network does BIN 521003 belong to?
BIN 521003 belongs to the Mastercard network and is a credit card.
Is it safe to look up BIN 521003?
Yes. BIN data covers only the first 6-8 digits of a card and is public industry information used by merchants and payment processors. It cannot identify any individual card or cardholder.