FlyerTalk Forums - View Single Post - Entering GE (KTN) into TK reservation
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Old Feb 14, 2018 | 1:55 pm
  #8  
paytonc
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Join Date: May 2004
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I often add my KTN at the airport kiosk (sometimes less than an hour before departure) and have never been denied PreCheck. YMMV, of course; apparently there are different levels of Known Travelers ("well-known" vs. "somewhat known"?) and Global Entry is fairly high on that ranking.
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