Where is the Known Traveler Number?

A Known Traveler Number is issued after approval for TSA PreCheck, Global Entry, or other trusted traveler programs. This number must be entered in your booking profile to enable expedited screening. When passengers ask Where is the Known Traveler Number?, it is usually found in the approval documentation, DHS account, or on the membership card. Once added, the TSA PreCheck indicator will appear on your boarding pass. For more details on KTNs, one can go through the blog by Airlines Group Travel at the mentioned link.