Is redress number and known traveler number the same?

Redress numbers are intended to correct misidentifications that may lead to security issues for certain travelers, while a Known Traveler Number is a travel perk you can pay for.



No, a Redress Number and a Known Traveler Number (KTN) are completely different and serve opposite purposes in the aviation security system. A Known Traveler Number (KTN) is a "badge of trust" issued to individuals who have passed a background check through programs like TSA PreCheck, Global Entry, NEXUS, or SENTRI. Entering a KTN when booking a flight allows the "TSA PreCheck" logo to appear on your boarding pass, giving you access to expedited security lanes. In contrast, a Redress Number is a "badge of resolution" issued through the DHS Traveler Redress Inquiry Program (DHS TRIP). It is for people who consistently face issues during security screening—such as being frequently selected for "Secondary Security Screening Selection" (SSSS) or being misidentified as a person on a government watch list due to having a similar name to a person of interest. By including a Redress Number in your booking, the system can distinguish you from the "flagged" individual, preventing unnecessary delays. In short: KTN is for speed, while a Redress Number is for identity correction.

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There are two 9-digit numbers on the back of the Global Entry card. The one on the upper left corner is the Known Traveler Number or PASSID. But on the upper right hand corner there is another 9-digit number, slightly larger than the PASSID.

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Valid Proof of Citizenship
  • U.S. Birth Certificate.
  • U.S. Certificate of Citizenship (N-560 or N-561)
  • U.S. Certificate of Naturalization (N-550 or N-570)
  • U.S. Citizen Identification Card (I-179 or I-197)
  • Consular Report of Birth Abroad (FS-240)
  • Certification of Report of Birth Abroad (DS-1350 or FS-545)


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Many travelers ask where to find the redress number on their Global Entry cards, however, since not all travelers are issued redress numbers they are not typically printed on the Global Entry cards themselves.

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To receive TSA PreCheck®, you must include your Known Traveler Number (your CBP PASSID for Global Entry, NEXUS, or SENTRI members) in the appropriate field of your airline reservation, and the TSA PreCheck® indicator must be displayed on the boarding pass to access the lanes.

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Add your Known Traveler Number (KTN) to your United MileagePlus profile and existing reservations. If you have Global Entry, NEXUS or SENTRI, your 9-digit PASS ID is your KTN. It's on the back of your card in the upper-left corner and in your TTP profile.

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There's no TSA PreCheck in Europe (womp womp), but at select Europe airports, travelers can head to the front of the security line, free of charge.

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TSA PreCheck® is available when you depart from a U.S. airport to a foreign country, and for domestic, connecting flights after you return to the United States. If you travel internationally four or more times a year, consider enrolling in Global Entry instead of TSA PreCheck®.

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How it Works
  1. Apply Online. Submit an online application in 5 minutes & schedule an appointment at any of 500+ enrollment centers.
  2. Enroll in person. 10-min in-person appointment that includes fingerprinting for a background check.
  3. Travel with Ease.


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Perhaps the fastest way to get your KTN at this point is by signing in to the TTP website. If you applied for TSA PreCheck online, for example, you may have sign-in information to manage your application and membership. After signing in to the program's portal, you should be able to locate your KTN.

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To do so, click on Manage Trip for each reservation. Then, click on Add/Edit Passenger Information to add your PreCheck number.

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Visit the TSA PreCheck website and click on the Check Status button. Enter your full name, date of birth and passport number or your Known Traveler Number (KTN). Review your TSA PreCheck status. You'll know your membership is active if the website displays your current status, expiration date and KTN (if applicable).

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If you are a member of the TSA PreCheck® Application Program, look up your Known Traveler Number (KTN) here. If you are a member of another trusted traveler program, such as Global Entry, NEXUS, or SENTRI, log on to the Trusted Traveler Program website to obtain your PASSID, which is your KTN.

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TSA PreCheck enrollment expires five years after the initial approval of your Known Traveler Number (KTN). A lot can happen in five years—if it's been a while since your last trip, or if you've simply forgotten when you were approved, you can check your status anytime.

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