BIN 550604
BANCO NACIONAL ULTRAMARINO, S.A. • MACAU • MASTERCARD
About BIN 550604
BIN 550604 is a MASTERCARD credit card operating on the Unknown payment network, issued by BANCO NACIONAL ULTRAMARINO, S.A. in MACAU (MO). The default settlement currency for this card is Unknown. This is not a prepaid card — it is linked to a standard bank account or credit facility. Card numbers beginning with this BIN pass the Luhn algorithm validation, confirming they are structurally valid card numbers.
Frequently Asked Questions
What is BIN 550604?
A Bank Identification Number (BIN), also called an Issuer Identification Number (IIN), is the first 6–8 digits of a payment card. BIN 550604 identifies BANCO NACIONAL ULTRAMARINO, S.A. as the issuing institution for cards carrying this prefix. These digits tell payment processors which bank issued the card before the full transaction is initiated.
Which bank issued BIN 550604?
BIN 550604 was issued by BANCO NACIONAL ULTRAMARINO, S.A., a financial institution operating in MACAU. You may reach them by phone at +85328335533. Their official website is http://www.bnu.com.mo.
In which country is BIN 550604 registered?
BIN 550604 is registered in MACAU (country code: MO). The issuing bank, BANCO NACIONAL ULTRAMARINO, S.A., holds the licence to issue cards under this BIN range in MACAU. Transactions on these cards typically involve MACAU-based banking and settlement infrastructure.
Is BIN 550604 a credit, debit, or prepaid card?
BIN 550604 belongs to the credit card category. This is not a prepaid card, so it is linked to a standard bank account or approved credit facility.
What payment network does BIN 550604 use?
BIN 550604 operates on the MASTERCARD payment network using the Unknown card scheme. This means all transactions made with cards carrying this BIN are routed and processed through MASTERCARD's global payment infrastructure.
What currency is associated with BIN 550604?
The primary currency associated with BIN 550604 is Unknown. This is the currency in which domestic transactions are typically billed for cards under this BIN range when used in MACAU. International transactions may involve currency conversion depending on the merchant's country.
Does BIN 550604 pass the Luhn check?
Yes — card numbers beginning with BIN 550604 pass the Luhn algorithm. The Luhn algorithm is a standard checksum formula used by payment systems to detect miskeyed or structurally invalid card numbers. A passing result confirms the number range is mathematically valid.
