Free Guide to Locating Your TSA PreCheck Number

What TSA PreCheck Is and How It Works

TSA PreCheck is a trusted traveler program run by the Transportation Security Administration, a federal agency within the Department of Homeland Security. The program allows participating U.S. citizens and nationals to move through airport security checkpoints more quickly by undergoing a background check and providing biometric information upfront.

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When you have TSA PreCheck, you receive a Known Traveler Number (KTN), also called a TSA PreCheck number. This nine-digit code is linked to your identity in TSA systems. When you book a flight, you enter this number in the passenger name record with your airline. This tells TSA that you have already been vetted, and you can then use expedited security lanes at participating airports.

The benefits of having TSA PreCheck include shorter security lines and a faster screening process. Travelers with TSA PreCheck typically do not need to remove shoes, belts, light jackets, or laptops from their bags. Liquids in containers of 3.4 ounces or smaller can remain in carry-on bags. You also may not need to remove your ID and boarding pass from your pocket in some cases.

TSA PreCheck is available at more than 200 U.S. airports. Major airports participating in the program include those in New York, Los Angeles, Chicago, Atlanta, and Dallas. Some smaller regional airports also participate. You can check the TSA website for a complete list of participating airports in your area.

The program requires a one-time fee and a background investigation. Most people who apply are approved, though some may be denied based on security or criminal history. The background check looks at your criminal records, immigration status, and other security-related information at the federal, state, and local levels.

Practical Takeaway: Understanding what TSA PreCheck is will help you know where to look for your number and why you may need it. Your KTN is the key piece of information that connects your identity to your PreCheck status at the airport.

Where Your TSA PreCheck Number Appears After Approval

Once you complete the TSA PreCheck process and receive approval, your KTN is generated and stored in the TSA's database. Your number appears in several places, and knowing where to find it makes locating it much easier when you need it.

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The most direct source for your TSA PreCheck number is your approval notice. When TSA approves your enrollment, they send you a notification letter in the mail. This letter contains your nine-digit Known Traveler Number. If you still have this original letter, you can simply look at it to find your number. The KTN is typically printed near the top or middle of the letter in a prominent location.

Your TSA PreCheck number should also appear in your enrollment record in the TSA PreCheck program system. You can create an account on the official TSA PreCheck website to view your information. This online account stores your enrollment details, and your KTN is displayed there. To access this account, you need to provide your name, date of birth, email address, and other identifying information that matches your enrollment record.

Your approval notice may also indicate that you received a membership card or credential. Some enrollment centers issue physical cards with your KTN printed on them. If you received a card, the number is displayed on its front or back. These cards serve as proof of your PreCheck status, though you technically only need the nine-digit number when booking flights.

Airlines may also have your TSA PreCheck number on file if you previously provided it when booking a flight. You can contact your airline or check your frequent flyer account to see if your KTN is stored there. Some people find their number this way if they previously booked a flight with PreCheck but cannot locate their original approval notice.

If you received a notification of approval by email, that email may contain your KTN or instructions on how to find it. Some people check their email archives and find their TSA PreCheck information in old messages from the TSA.

Practical Takeaway: Your TSA PreCheck number exists in multiple places. Start by looking for your original approval letter, checking your email archives, and accessing your TSA PreCheck online account. These three sources will cover most situations.

How to Access Your TSA PreCheck Account Online

The TSA PreCheck official website provides an online account system where you can view your enrollment information, including your Known Traveler Number. Creating and accessing this account is a straightforward process that requires basic personal information.

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To set up your online account, visit the official TSA PreCheck website at universalenroll.tsa.dhs.gov. This is the only official enrollment and account management portal. Be cautious about other websites that may claim to help you find your number, as some third-party sites may charge fees for information you can obtain for free from the official source.

Once on the official site, look for a login or account access option. You will typically see a button or link that says "Sign In" or "Access Your Account." Click this to begin the login process. If you do not already have an account, the site will offer an option to create one.

To create a new account, you will need to provide personal information such as your full name, date of birth, email address, and phone number. The system may ask for additional details to verify your identity and match your information against TSA records. Have your enrollment confirmation letter nearby, as you may need information from it during the account setup.

Once your account is created and you are logged in, you should see a dashboard or account summary page. Your TSA PreCheck number will be displayed on this page, along with your enrollment status, the date your PreCheck was approved, and any other relevant enrollment information. You can typically take a screenshot or write down your number for future reference.

If you forget your login password, the site provides a password reset option. You can use your email address to receive a reset link. If you have trouble accessing your account or cannot remember the email address you used during enrollment, you may need to contact TSA customer service by phone. The TSA PreCheck website provides phone numbers for customer support.

The online account system is accessible 24 hours a day, seven days a week. You can check your account information at any time before a flight to confirm your number is correct or to verify your enrollment status.

Practical Takeaway: Visit universalenroll.tsa.dhs.gov and log into your account to view your KTN. This method works anytime you need your number and requires no phone calls or waiting.

Contacting TSA Customer Service to Retrieve Your Number

If you cannot locate your TSA PreCheck number through your approval letter or online account, you can contact TSA customer service directly. TSA staff can look up your enrollment information in their system and provide you with your KTN over the phone.

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TSA PreCheck customer service can be reached by phone at 1-855-347-8371. This is the official phone line for TSA PreCheck inquiries. When you call, have the following information ready: your full name, date of birth, email address, and address on file. This information helps TSA representatives find your enrollment record in their system.

Customer service hours typically run Monday through Friday during business hours, though hours may vary. Some TSA PreCheck enrollment locations also have phone numbers you can call during their hours of operation. If you enrolled at a specific enrollment center, you may find a phone number on your approval letter or receipt from when you enrolled.

When you call, explain that you need to locate your TSA PreCheck number. The representative will ask you to verify your identity by confirming personal information. Once confirmed, they can provide your nine-digit KTN over the phone. Write down the number carefully, as you will need it to enter into airline booking systems.

If you prefer not to call, some TSA PreCheck enrollment locations accept email inquiries. Check your approval letter or the TSA website for email contact information for your local enrollment center. Email responses may take several business days, so this method works best if you are not in a time-sensitive situation.

You can also visit a TSA PreCheck enrollment center in person if one is located near you. Staff at these centers can access your enrollment record and provide your number face-to-face. Enrollment centers are located at airports, passport offices, and other participating locations across the country. A list of enrollment centers is available on