I forgot my Known Traveler Number (KTN). How do I find it?

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.

Adding TSA Precheck # (known traveler#) to already booked ticket - FlyerTalk Forums

How to Find Your TSA PreCheck Number: Easy KTN Lookup

I forgot my Known Traveler Number (KTN). How do I find it?

Known Traveler Number Guide: (How to Lookup, Global Entry, Pre-Check) [2023] - UponArriving

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Adding TSA Precheck # (known traveler#) to already booked ticket - FlyerTalk Forums

How to Find Your TSA PreCheck Number: Easy KTN Lookup

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