About BIN 523903
The Bank Identification Number 523903 identifies cards issued by E. Sun Commercial Bank Co., LTD. on the Mastercard network in Taiwan. 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 523903?
BIN 523903 is issued by E. Sun Commercial Bank Co., LTD. in Taiwan.
What card network does BIN 523903 belong to?
BIN 523903 belongs to the Mastercard network and is a credit card.
Is it safe to look up BIN 523903?
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.