BIN 400121
Unknown • IRELAND • VISA
About BIN 400121
BIN 400121 is a VISA debit card operating on the ELECTRON payment network, issued by Unknown in IRELAND (IE). 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 400121?
A Bank Identification Number (BIN), also called an Issuer Identification Number (IIN), is the first 6–8 digits of a payment card. BIN 400121 identifies Unknown 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 400121?
BIN 400121 was issued by Unknown, a financial institution operating in IRELAND.
In which country is BIN 400121 registered?
BIN 400121 is registered in IRELAND (country code: IE). The issuing bank, Unknown, holds the licence to issue cards under this BIN range in IRELAND. Transactions on these cards typically involve IRELAND-based banking and settlement infrastructure.
Is BIN 400121 a credit, debit, or prepaid card?
BIN 400121 belongs to the debit 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 400121 use?
BIN 400121 operates on the VISA payment network using the ELECTRON card scheme. This means all transactions made with cards carrying this BIN are routed and processed through VISA's global payment infrastructure.
What currency is associated with BIN 400121?
The primary currency associated with BIN 400121 is Unknown. This is the currency in which domestic transactions are typically billed for cards under this BIN range when used in IRELAND. International transactions may involve currency conversion depending on the merchant's country.
Does BIN 400121 pass the Luhn check?
Yes — card numbers beginning with BIN 400121 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.
