how many numbers in atm card

A standard ATM or Debit card typically has a 16-digit number printed on its front. This unique identifier is crucial for online and offline transactions and is composed of several sections, each providing specific information:

• The first digit is the Major Industry Identifier (MII) that identifies the card network (like Visa or Mastercard).
• The first six digits make up the Issuer Identification Number (IIN), which points to the card-issuing bank.
• The middle digits are linked to your unique bank account number.
• The final digit is a checksum used for validation purposes.