CreditCardValidator
Visa Credit Cards — Citibank Berhad - IIN 438598
Credit card numbers that start with the Issuer Identification Number (IIN) 438598 are Visa credit cards issued by Citibank Berhad in Malaysia. Citibank Berhad issues cards under a total of six IIN numbers including this one, so some card numbers issued by Citibank Berhad may start with IIN numbers from one of these other ranges. You can view a list of all six of Citibank Berhad's IIN numbers here. For more information, call Citibank Berhad at (032) 383-0000.
| Card Scheme | Visa |
|---|---|
| Bank Name | Citibank Berhad |
| Card Type | CREDIT |
| IIN | 438598 |
| Card Number | 4385 98XX XXXX XXXX |
| Bank Phone | (032) 383-0000 |
| Bank Country |
Malaysia
|
Anatomy of a Citibank Berhad Visa Credit Card Number
While credit card number may seem like a random string of digits, they actually contain a large amount of valuable data about the card that can be used for validation and verification purposes.
Digit 1 — The MIIThe first digit of the card is known as the MII digit, and indicates the credit card's scheme. In this case, the MII of 4 indicates that this is a Visa card.
Digits 1-6 — The IIN / BINThe first six digits of the card number, inclusive of the MII, are called the IIN (Issuer Identification Number) or BIN (Bank Identification Number). This sequence uniquely identifies the bank that issued the card. In this case, the IIN of 438598 indicates that this card was issued by Citibank Berhad in Malaysia.
Digits 7-15 — The Account NumberDigits 7-15 of the credit card number contain the Primary Account Number, or PAN, issued by the bank to uniquely identify the account holder. These 8 digits are the most important part of the credit card number.
Digit 16 — The Check DigitThe last digit of the card number (the 16th digit in most cases) is the check digit, which is calculated by applying a mathematical formula called the Luhn algorithm to the preceding portions of the account number. While not actually part of the account number itself, the check digit is essential to allow easy validation of card numbers and detection of typos, missed digits, etc.