Your credit card account number is the 15 or 16-digit number printed on the front of your card
The account number is the unique identifier for your specific credit card account. It appears on the front of your physical card, usually in a row of raised or printed digits. This number is different from your routing number — which is used for bank transfers — and different from your card's security code on the back.
You'll need your credit card account number when you make a purchase over the phone, pay a bill by mail, set up automatic payments, or contact your card issuer about your account. It's also the number you use to log into your online account or mobile app, though the app may display only the last four digits for security.
Key Takeaways
- Your credit card account number is the 15 or 16-digit number on the front of your card, separate from your routing number or security code.
- You need this number to make purchases by phone, mail, or online, and to set up automatic payments to your card issuer.
- Never share your full account number by email, text, or phone unless you initiated the contact with a verified number from your card statement.
- If your card is lost or stolen, call your card issuer immediately using the number on the back of your card or your statement to report it.
Where the account number appears on your card
The account number is printed or embossed on the front of your card in a single row. On most cards, it's positioned below the cardholder's name. The digits are usually grouped in sets of four for readability, though they form one continuous number.
If you don't have your physical card, you can find your account number on your monthly statement, in your online account portal, or by calling the customer service number on the back of your card. Your card issuer can also provide it by mail if you request it.
How your account number differs from other card numbers
Your credit card has three separate numbers that serve different purposes. The account number identifies your specific credit card account with the issuer. The security code — also called the CVV or CVC — is the three or four-digit number on the back of your card used to verify you have the physical card during online purchases. The routing number, by contrast, is used for bank transfers and belongs to your bank, not your credit card issuer.
Some card issuers also assign a card number that differs slightly from the account number, particularly if you have multiple cards on the same account. Your statement will clarify which number applies to which card.
When you need to provide your account number
You'll use your account number to make a purchase when you're paying by phone or mail. You also need it to set up automatic payments to your card issuer, to dispute a charge, or to request a credit limit increase. If you're paying a bill from a business that accepts credit card payments, you'll provide your account number along with the expiration date and security code.
You may also need your account number to log into your card issuer's website or app, though many issuers now allow you to use your email address or username instead. When you call customer service, the representative may ask for your account number to pull up your account, or they may ask for the last four digits as a security measure.
Protecting your account number from fraud
Treat your account number like cash — don't share it unless you initiated the contact. If a company calls you asking for your account number, hang up and call the number on the back of your card or your statement to verify the request is legitimate. Scammers often pose as card issuers or merchants to steal account numbers.
Never send your account number by email or text, and don't write it down and leave it visible. When you make an online purchase, your browser should show a padlock icon and the web address should begin with "https" to indicate the connection is encrypted. If you notice charges you don't recognize, contact your card issuer immediately — most cards offer fraud protection that limits your liability.
What to do if your card is lost or stolen
Call your card issuer right away using the number on the back of your card or from your most recent statement. Do not use a number from an email or text message, as scammers sometimes send fake alerts. Tell the issuer your card is lost or stolen, and they will cancel it and issue a replacement with a new account number.
Your old account number will no longer work once the card is cancelled. If you have automatic payments set up using that account number, you'll need to update them with your new account number once you receive your replacement card. Most issuers can provide your new account number over the phone so you don't have to wait for the physical card to arrive.
Frequently Asked Questions
Is my account number the same as my card number?
Usually yes — the account number on the front of your card is the same number used to identify your account with the issuer. However, some issuers distinguish between the two, so check your statement or call customer service if you're unsure which number to use for a specific transaction.
Can I use my account number to make purchases online?
Yes, you can enter your account number, expiration date, and security code to make an online purchase. Make sure the website is secure (look for "https" and a padlock icon) before entering any card information. Never enter your account number on an unsecured website.
What if I forget my account number?
Check your monthly statement, log into your online account, or call the customer service number on the back of your card. The representative can provide your account number or the last four digits to confirm your identity. You can also request a replacement card if you need the number written down.
Do I need my account number to dispute a charge?
Yes, having your account number makes the dispute process faster. When you call to report an unauthorized charge, the representative will ask for your account number to pull up your account and locate the transaction. You can also dispute charges through your online account portal.
Will my account number change if I get a new card?
If you're replacing a card due to damage or expiration, your account number usually stays the same. If your card is lost, stolen, or compromised, the issuer will cancel it and assign a new account number with your replacement card. Check your new card when it arrives to confirm the account number.