How do I know if my TSA Precheck has expired?

Related questions

1. Does TSA PreCheck work for international flights?
2. Can I use Global Entry without my card?
3. Can I renew TSA PreCheck online?
4. Can my child go through Global Entry with me?
5. Do I need my card to use Global Entry?
6. Is Global Entry and TSA PreCheck worth it?
7. What is the TTP website?
8. Is Known Traveler Number same as TSA Pre?
9. How do I know if I have a known traveler number?
10. Can I use TSA PreCheck for international flights?

Tags

1. #expires
2. #between
3. #record
4. #members
5. #email
6. #membership
7. #notification
8. #valid
9. #request
10. #weekdays
11. #number
12. #service
13. #expiration
14. #renewal
15. #phone
16. #contact
17. #customer