Want to know what credit card starts with 3787? So did we! Keep reading and we’ll tell you what we found out!

Every credit card has either 15 or 16 total digits. Why not one or the other? It turns out that the total number of digits depends on what card network the card uses. Visa, Mastercard, and Discover use 16 digits while American Express uses 15 digits. Interestingly, every one of those 15 or 16 digits has a hidden meaning. Besides being unique to you, they can tell us what type of card it is, the bank that issued the card, and what account is associated with the card. There’s even a digit at the end that’s used to make sure you entered all the other numbers correctly.

What Does The ‘3’ in a 3787 American Express Credit Card Mean?

Knowing the card’s first digit helps us discover the credit card network the card belongs to. The best-known credit card networks are Visa, Mastercard, and American Express. Although they’re the biggest card networks, they’re not the only ones! Besides the big three, there’s also Discover, Diner’s Club, Carte Blanche, JCB, and a few smaller ones.

The first digit of the credit card is called a “Major Industry Identifier”. Why? It’s because the first number tells us what credit card network the card belongs to. For “3787” the first digit is a “3”. It turns out that if the first digit is a “3” it’s always an American Express, Diner’s Club, Carte Blanche, or JCB credit card.

This means our card can’t be a Visa, Mastercard, or Discover credit card. Although we haven’t narrowed it down to one car network yet, we do know that a “3787” credit card must be an American Express, Diner’s Club, Carte Blanche, or a JCB card.

How about other credit card prefixes? A card that begins with a “4” is always a Visa card. A “2” or a “5” would be a Mastercard credit card, and a “6” would be a Discover card. It used to be that Mastercard only used a “5” but they also started using a “2” a few years back.

Is a 3787 Credit Card a Visa, Mastercard, or American Express?

A 3787 credit or debit card is always American Express! How do we know that? It’s because every card starting with 34 or 37 is an American Express card! Another clue is that only American Express has 15-digit card numbers! Visa and Mastercard credit and debit cards are always 16 digits, never 15.

That’s not the whole story, though! Although every 3787 card will be an Amex, there are many different types of Amex credit cards. Not all American Express cards are equal! We detail all the different types of 3787 cards in the next section.

What Do The Rest of The American Express Credit Card Numbers Mean?

Now that we know that a 3787 prefix credit card is an American Express card, we’re already part way to solving the secret behind the numbers. To solve the rest of the mystery, we’ll need to decipher the remaining “787” bit.

It turns out that the 2nd through 6th digits of a credit card tell us who the card issuer is and the exact kind of credit card. In credit card industry-speak, these numbers are called the “Bank Identification Number”. Okay, but we only have 3 of the Bank Identification Numbers, not 6. Is that a problem? Nope! We can still solve the mystery behind the numbers by using the 3 remaining numbers that we do have.

List of BINs/IINs for American Express Credit Cards Starting with 3787

After researching the issue, we found the answers to the 3787 credit card mystery. It turns out that a 3787 credit or debit card will always be 1 of 100 possible American Express credit and debit cards.

Below are the BIN/IIN details, including the banks and issuing institutions, for all 100 of the 3787 credit cards and debit cards.

BINs/IINs from 378700 to 378710 (Credit Card Types)

• 378700 is an American Express Small Corporate credit card issued by the American Express Company in the United States
• 378701 is an American Express Small Corporate credit card issued by the American Express Company in the United States
• 378702 is an American Express Small Corporate credit card issued by the American Express Company in the United States
• 378703 is an American Express Small Corporate credit card issued by the American Express Company in the United States
• 378704 is an American Express Small Corporate credit card issued by the American Express Company in the United States
• 378705 is an American Express Small Corporate credit card issued by the American Express Company in the United States
• 378706 is an American Express Small Corporate credit card issued by the American Express Company in the United States
• 378707 is an American Express Small Corporate credit card issued by the American Express Company in the United States
• 378708 is an American Express Small Corporate credit card issued by the American Express Company in the United States
• 378709 is an American Express Small Corporate credit card issued by the American Express Company in the United States
• 378710 is an American Express Small Corporate credit card issued by the American Express Company in the United States

BINs/IINs from 378711 to 378720 (Credit Card Types)

• 378711 is an American Express Small Corporate credit card issued by the American Express Company in the United States
• 378712 is an American Express Small Corporate credit card issued by the American Express Company in the United States
• 378713 is an American Express Small Corporate credit card issued by the American Express Company in the United States
• 378714 is an American Express Small Corporate credit card issued by the American Express Company in the United States
• 378715 is an American Express Small Corporate credit card issued by the American Express Company in the United States
• 378716 is an American Express Small Corporate credit card issued by the American Express Company in the United States
• 378717 is an American Express Small Corporate credit card issued by the American Express Company in the United States
• 378718 is an American Express Small Corporate credit card issued by the American Express Company in the United States
• 378719 is an American Express Small Corporate credit card issued by the American Express Company in the United States
• 378720 is an American Express Small Corporate credit card issued by the American Express Company in the United States

BINs/IINs from 378721 to 378730 (Credit Card Types)

• 378721 is an American Express Small Corporate credit card issued by the American Express Company in the United States
• 378722 is an American Express Small Corporate credit card issued by the American Express Company in the United States
• 378723 is an American Express Small Corporate credit card issued by the American Express Company in the United States
• 378724 is an American Express Small Corporate credit card issued by the American Express Company in the United States
• 378725 is an American Express Small Corporate credit card issued by the American Express Company in the United States
• 378726 is an American Express Small Corporate credit card issued by the American Express Company in the United States
• 378727 is an American Express Small Corporate credit card issued by the American Express Company in the United States
• 378728 is an American Express Small Corporate credit card issued by the American Express Company in the United States
• 378729 is an American Express Small Corporate credit card issued by the American Express Company in the United States
• 378730 is an American Express Small Corporate credit card issued by the American Express Company in the United States

BINs/IINs from 378731 to 378740 (Credit Card Types)

• 378731 is an American Express Small Corporate credit card issued by the American Express Company in the United States
• 378732 is an American Express Small Corporate credit card issued by the American Express Company in the United States
• 378733 is an American Express Small Corporate credit card issued by the American Express Company in the United States
• 378734 is an American Express Small Corporate credit card issued by the American Express Company in the United States
• 378735 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378736 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378737 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378738 is an American Express Small Corporate credit card issued by the American Express Company in the United States
• 378739 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378740 is an American Express Corporate credit card issued by the American Express Company in the United States

BINs/IINs from 378741 to 378750 (Credit Card Types)

• 378741 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378742 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378743 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378744 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378745 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378746 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378747 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378748 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378749 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378750 is an American Express Corporate credit card issued by the American Express Company in the United States

BINs/IINs from 378751 to 378760 (Credit Card Types)

• 378751 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378752 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378753 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378754 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378755 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378756 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378757 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378758 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378759 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378760 is an American Express Corporate credit card issued by the American Express Company in the United States

BINs/IINs from 378761 to 378770 (Credit Card Types)

• 378761 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378762 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378763 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378764 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378765 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378766 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378767 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378768 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378769 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378770 is an American Express Corporate credit card issued by the American Express Company in the United States

BINs/IINs from 378771 to 378780 (Credit Card Types)

• 378771 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378772 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378773 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378774 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378775 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378776 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378777 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378778 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378779 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378780 is an American Express Corporate credit card issued by the American Express Company in the United States

BINs/IINs from 378781 to 378790 (Credit Card Types)

• 378781 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378782 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378783 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378784 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378785 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378786 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378787 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378788 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378789 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378790 is an American Express Corporate credit card issued by the American Express Company in the United States

BINs/IINs from 378791 to 378799 (Credit Card Types)

• 378791 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378792 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378793 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378794 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378795 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378796 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378797 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378798 is an American Express Corporate credit card issued by the American Express Company in the United States
• 378799 is an American Express Corporate credit card issued by the American Express Company in the United States

How Many 3787 Credit Cards Are There?

Examining the results, we now know there are 100 different types of American Express 3787 credit cards. Interestingly, all 100 of the cards are either Small Corporate or Corporate cards. We also know that all 100 of the 3787 credit card types are issued in the United States.

What Do The Final Card Digits Mean? (Primary Account Number and Check Digit)

Since you’ve read this far, you might be interested in understanding what the rest of the numbers on your card mean. On your 3787 credit card, the 7th to the 14th digits represent the account holder’s account number, which is called a Primary Account Number (PAN).

These eight PAN digits are unique to an account holder and are the most important part of the credit card number. The last digit, called a check digit, is used for verification purposes to avoid charging purchases to the wrong card number.

When typing in your American Express card number, it’s always possible to mistype a digit or two. That’s why the check number, which is the 15th digit, exists. Check digits are used for the detection of typos. The credit card network instantly verifies that everything was entered correctly by running the check digit plus the rest of the preceding portions of the account number through a mathematical formula called the ‘Luhn Algorithm’.

Conclusion: 3787 Credit Card Type? Always an American Express card!

Our results show that there are 100 different types of 3787 credit cards issued worldwide. We also know that every 3787 credit card is an American Express. We hope this credit card information is a helpful resource that satisfies your curiosity. Credit card numbers change, so accuracy is not guaranteed.