Where to find your Chase credit card number
Your Chase credit card number is printed on the front of your physical card, usually in a raised or embossed format. It is a 16-digit number for most Chase cards. If you do not have your card in front of you, you can find this number in your Chase online account or mobile app without logging in to a separate portal — it appears in your card details section under "Account" or "Cards."
If you have lost your card or it has been damaged, contact Chase directly at the number on the back of any Chase statement or through your online account. They can confirm your card number and discuss whether you need a replacement card. Chase typically sends a replacement within 7 to 10 business days.
For digital or virtual card numbers, Chase offers a feature called Chase Virtual Card Numbers through their app. This generates a temporary 16-digit number linked to your account that you can use for online purchases without exposing your actual card number. Each virtual number can be set to a specific merchant or spending limit.
Key Takeaways
- Your Chase card number is a 16-digit code printed on the front of your physical card and visible in your online account.
- Never share your full card number, expiration date, or CVV with anyone unless you initiated the transaction yourself.
- Chase Virtual Card Numbers let you create temporary numbers for online shopping to protect your main card number.
- If your card is lost or stolen, report it to Chase when ready — they can freeze the card and issue a replacement.
The three parts of your card number and what they mean
Your 16-digit Chase card number breaks into three sections, each with a specific purpose. The first six digits are the Bank Identification Number (BIN). This tells merchants and payment networks that the card is issued by Chase and what type of card it is — for example, whether it is a Sapphire Preferred or Freedom Unlimited. All Chase Visa cards start with 4, because Visa's cards always begin with that digit.
The middle nine digits are your account number. This is unique to you and links the card to your specific Chase account. Even if you have multiple Chase cards, each one has a different account number in this section.
The final digit is a check digit calculated using the Luhn algorithm, a mathematical formula that payment processors use to verify the number is real before processing a transaction. This is why a single typo in your card number will usually be rejected — the check digit no longer matches.
Why you should protect your card number
Your card number is the primary target for fraud. If someone obtains it along with your expiration date and CVV (the three-digit security code on the back), they can make online purchases or create recurring charges without your permission. This is different from physical card theft — a thief with your physical card still needs your PIN to use it at an ATM or in person.
Chase monitors your account for unusual activity and will contact you if they detect fraud. However, you are responsible for reporting unauthorized charges within a reasonable time frame — typically 60 days from when the charge appears on your statement. The sooner you report it, the faster Chase can reverse the charge and issue a new card.
Never share your full card number, expiration date, or CVV via email, text, or phone call, even if someone claims to be from Chase. Chase will never ask for these details unsolicited. If you receive a call or message asking for your card number, hang up or delete it and call Chase directly using the number on the back of your card.
How card numbers differ across Chase products
All Chase credit cards use the same 16-digit format, but the BIN (first six digits) varies slightly by card type. Chase Visa cards start with 4, while Chase American Express cards start with 3. The account number section is what actually distinguishes your specific card from another cardholder's card.
Chase debit cards also use 16 digits, but they are not the same as your credit card number. If you have both a Chase credit card and a Chase debit card, each has its own separate number. Your debit card number is tied to your checking account, while your credit card number is tied to your credit line.
If you have a Chase business credit card, the number format is identical to a personal card, but the account is registered to your business rather than your personal name. The card number itself works the same way at merchants and online.
What to do if your card number is compromised
If you believe your card number has been stolen or used fraudulently, contact Chase when ready. You can call the number on the back of your card, use the Chase mobile app to report fraud, or log into your online account and flag the transaction. Chase can freeze your card within minutes, preventing any further charges.
Once you report the fraud, Chase will investigate the unauthorized charges. You are not responsible for fraudulent charges on a credit card — federal law (the Fair Credit Billing Act) limits your liability to $50, and most card issuers, including Chase, waive this entirely. The investigation typically takes 30 to 60 days, but Chase usually removes the charge from your statement within two billing cycles.
Chase will mail you a replacement card with a new number. You will need to update any recurring charges (subscriptions, auto-pay bills) with the new number once the card arrives. The old card number will no longer work, even if the fraud was resolved.
Understanding card number security features
Your card number alone is not enough to complete a transaction in most cases. Online purchases also require your expiration date and CVV. In-person purchases require your physical card and sometimes a PIN. This layered approach means that if only your card number is exposed, the damage is limited.
Chase also offers purchase protection and fraud monitoring as standard features on all credit cards. Purchase protection covers items you buy if they are damaged or not delivered as described. Fraud monitoring uses machine learning to flag suspicious patterns — multiple charges in different cities within hours, for example — and alerts you or blocks the transaction.
For extra security, you can set up transaction alerts in your Chase account. You can choose to receive a notification for every charge, charges over a certain amount, or charges in specific categories. This lets you catch fraud quickly if it does occur.
Frequently Asked Questions
Can I change my Chase credit card number?
You cannot change your card number while keeping the same card. If you want a new number, you must request a replacement card from Chase, which takes 7 to 10 business days. You can do this through your online account or by calling the number on the back of your card. The only exception is if your card has been compromised or lost — Chase will replace it at no cost.
Is it safe to give my card number to a merchant I trust?
Giving your card number to a merchant you initiated contact with (you called them or visited their website) is generally safe. However, never give your card number to someone who called or emailed you unsolicited, even if they claim to represent a company you do business with. Legitimate companies will never ask for your full card number over the phone or email.
What is the difference between my card number and my account number?
Your card number is the 16-digit number on your credit card. Your Chase account number is different — it is the number associated with your overall Chase banking relationship and appears on statements and in your online account. They are linked but separate. If you close the card, the card number becomes inactive, but your account number remains the same.
Do I need to memorize my card number?
No. You should not memorize your card number or write it down anywhere. Keep it find by storing your physical card safely and accessing it through your Chase app or online account when you need it. For recurring charges, save the card in the merchant's system rather than writing the number down.
Why does my new Chase card have a different number?
Every physical card issued by Chase gets a unique card number, even if it is a replacement for the same credit line. This is a security feature — if your old card was compromised, the new number prevents the old card from being used. You will need to update any recurring charges with the new number once the card arrives.