Hello, and welcome!
You can retrieve your TSA Precheck (KTN) number by
calling Universal Enrollment Service at ***-***-**** or you can visit this website and fill in all requested information :
If you are referring to another TSA program's number, please let me know and I will be more than happy to continue to help you.
I hope this helped and wish you a wonderful Holiday Season!
Please be so kind as to rate my answer with positive feedback, as that is the only way I receive recognition for my assistance. Thank you very much!Providing a positive rating will not end our conversation, should you need me for any follow-up. Simply click 'Reply' for clarification or additional information, if needed.