TSA's enrollment provider will send a renewal notification to members who have a valid email and/or phone number on record. Members will receive notification 6 months, 3 months, 1 month, and 2 weeks prior to their expiration. Emails will come from "Universal Enroll".
You may check your membership status online. You can find your Known Traveler Number (KTN) expiration date under the field marked “TSA PreCheck® Expiration Date”
You may also contact customer service at 855-347-8371 weekdays between 8 a.m. - 10 p.m. ET to request your KTN expiration date.