That sinking feeling when you're at the airport, ready to breeze through TSA PreCheck, and realize you've misplaced your Known Traveler Number (KTN)? We've all been there! Luckily, retrieving your KTN is usually a straightforward process.
First, **check your online profiles.** If you're a member of TSA PreCheck, Global Entry, or SENTRI, log into your account. Your KTN should be readily displayed on your profile page.
Next, **dig through your old travel documents.** Check old airline tickets (both physical and digital), boarding passes, and Global Entry cards. The KTN is often printed on these documents.
Finally, **contact the relevant agency.** If all else fails, contact the agency that issued your KTN. For TSA PreCheck, contact the program directly. For Global Entry or SENTRI, contact CBP (Customs and Border Protection). Be prepared to provide identifying information to verify your identity.
Don't let a missing KTN derail your travel plans. With a little detective work, you'll be back in the PreCheck lane in no time!