This post may contain affiliate links, meaning I may earn a small commission at no cost to you if you make a purchase through the links.

Guide to what your credit card numbers mean.

Did you know that there is a credit card that starts with the number 6011? In fact, there are a few different cards that start with this number. But what does it mean for you when you’re looking for a new credit card to apply for?

What credit card starts with 6011? The 6011 credit card type includes Discover Cards, which start with 6011, 6221, 644, and 65.

Major Industry Identifier (MII)

0 – ISO/TC 68 and other industry assignments

1 – Airline industry

2 – Airlines and other industry assignments

3 – Travel and entertainment

4 – Banking and financial

5 – Banking and financial

6 – Merchandising and banking

7 – Petroleum

8 – Telecommunications and other industry assignments

9 – National assignment

The First Digit Of Major Credit Card Issuers (Credit Card Prefix List)

Each major credit card network has its own MII:

2 – JCB, 2123 or 1800 and has 15 digits

3 – JCB and has 16 digits

3 – American Express cards, more specifically a 34 or a 37 have 15 digits

3 – Diners Club and Carte Blanche cards, followed by a 0, 6, or 8 and have 14 digits (36, 38, or 300 through 305)

4 – Visa cards and have 13 or 16 digits

5 – Mastercard cards and has 16 digits

FREE FILLABLE Monthly Budget Template

It's Never Too Late To Start Budgeting.

    We won't send you spam. Unsubscribe at any time.
    Powered By ConvertKit

    6 – Discover cards and have 16 digits

    Issuer Identification Number/Bank Identification Number

    The Issuer Identification Number, previously known as the Bank Identification Number.

    Here are the IIN of some of the major banks.

    4 – Visa

    5 – MasterCard, start with the numbers 51 through 55.

    36 or 38 – Diner’s Club card, note that there are Diners Club cards that begin with 5. These are a joint venture between Diners Club and MasterCard and are processed like a MasterCard.

    6011 or 65 – Discover card

    35 – Japan Credit Bureau (JCB)

    34 or 37 – American Express card (Amex)

    How To Tell Credit Card Type By First 4 Digits

    To identify the credit card type, you only need the first digit of the card number.

    For Discover, the first four digits are 6011, 622126-622925, 644-649, or 65. While for American Express, it’s 34 or 37. For Mastercard, it ranges from 51-to 55. Lastly, Visa cards start with a 4.

    What Kind Of Credit Card Starts With 4400?

    4400 is the beginning of a range of credit card numbers that are issued by Visa. If you have a credit card that starts with 4400, it means that your card is a Visa card.

    What Credit Card Starts With 5?

    A credit card that starts with 5 is most likely a Mastercard. All Mastercards have numbers that start with the number 5. If you have a credit card that starts with 5, you can use it anywhere Mastercard is accepted. This includes millions of retailers and businesses around the world.

    Do All Discover Cards Begin With 6011?

    Most Discover cards do begin with 6011, but there are some variations. For example, some Discover cards start with 6221, 644, and 65.

    You can typically find your card’s number on the front of the card, near the embossed account number.

    Luhn Algorithm

    The mathematical formula called Luhn Algorithm is a simple checksum formula used to validate a variety of identification numbers, such as credit card numbers, IMEI numbers, and Canadian Social Insurance Numbers.

    The algorithm, which is based on a mathematical formula, is commonly used to distinguish valid numbers from mistyped or otherwise incorrect numbers on credit cards and other identification cards.

    The algorithm is a way of making sure that the number you enter is correct. This is done to protect you from mistakes and people who might try to commit fraud.

    The Luhn Algorithm is also known as the “mod 10” or “modulus 10” algorithm because it uses a modular division by 10.

    It works by looking at a credit card number and performing a mathematical operation on it.

    The number is then divided by 10, and if the remainder is 0, the number is a valid credit card number.

    If the remainder is not 0, the number is invalid.

    To understand how the Luhn algorithm is done, check out this article.

    Final Thoughts On What Credit Card Start With 6011

    Final Thoughts On What Credit Card starts with 6011

    Now you know what credit card starts with 6011. While this number is associated with Discover cards, there are other numbers that Discover cards use too like 6221, 644, and 65.

    When you’re looking for a new credit card, make sure to pay attention to the first four digits of the account number. This will give you a good indication of what type of card it is.

    If you have a credit card that starts with 4400, it’s a Visa. If your card starts with 5, it’s most likely a Mastercard. And if your card starts with 6011, it’s a Discover card.

    Keep these tips in mind the next time you’re shopping for a new credit card. And happy shopping!

    Don't know what credit card starts with 6011? You're not alone. This is a question that's stumped even the experts. But don't worry, we've got you covered. Check out our list of the best credit cards starting with 6011 and find one that fits your needs.

    What Credit Card Start With 4400?