BIN 521156
BUTTERFIELD BANK GUERNSEY, LTD. • GUERSNEY • MASTERCARD
About BIN 521156
BIN 521156 is a MASTERCARD credit card operating on the PLATINUM payment network, issued by BUTTERFIELD BANK GUERNSEY, LTD. in GUERSNEY (GG). 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 521156?
A Bank Identification Number (BIN), also called an Issuer Identification Number (IIN), is the first 6–8 digits of a payment card. BIN 521156 identifies BUTTERFIELD BANK GUERNSEY, LTD. 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 521156?
BIN 521156 was issued by BUTTERFIELD BANK GUERNSEY, LTD., a financial institution operating in GUERSNEY.
In which country is BIN 521156 registered?
BIN 521156 is registered in GUERSNEY (country code: GG). The issuing bank, BUTTERFIELD BANK GUERNSEY, LTD., holds the licence to issue cards under this BIN range in GUERSNEY. Transactions on these cards typically involve GUERSNEY-based banking and settlement infrastructure.
Is BIN 521156 a credit, debit, or prepaid card?
BIN 521156 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 521156 use?
BIN 521156 operates on the MASTERCARD payment network using the PLATINUM 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 521156?
The primary currency associated with BIN 521156 is Unknown. This is the currency in which domestic transactions are typically billed for cards under this BIN range when used in GUERSNEY. International transactions may involve currency conversion depending on the merchant's country.
Does BIN 521156 pass the Luhn check?
Yes — card numbers beginning with BIN 521156 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.
