What Is the Known Traveler Number (KTN)?

The Known Traveler Number (KTN) is a unique identifier issued to individuals who have successfully enrolled in a trusted traveler program, such as the TSA PreCheck or Global Entry program in the United States. This alphanumeric code, typically consisting of nine digits, allows travelers to access expedited security screening and immigration clearance at participating airports and borders, both domestically and internationally.

Key Characteristics of the Known Traveler Number (KTN):

1. Issued by Trusted Traveler Programs: KTNs are primarily issued by government-approved trusted traveler programs that aim to enhance the travel experience by providing expedited security and immigration processes for pre-vetted travelers.
2. Expedited Screening Benefits: When travelers provide their KTN during booking or at the airport, they may be eligible for benefits such as:
   • TSA PreCheck: Expedited security screening at U.S. airports, allowing travelers to keep their shoes, belts, and light jackets on and keep laptops and compliant liquids in their carry-on bags.
   • Global Entry: Expedited entry into the United States for international travelers, including U.S. citizens, lawful permanent residents, and certain visa holders. This includes using automated kiosks at select airports.
   • NEXUS: Expedited processing for travelers crossing the U.S.-Canada border by air, land, or sea.
   • SENTRI: Expedited processing for travelers crossing the U.S.-Mexico border by land.
3. Secure and Trusted: Enrollment in trusted traveler programs involves a comprehensive background check, fingerprinting, and an interview with immigration or customs officers. This thorough vetting process ensures that individuals with a KTN have undergone extensive security screening and are considered low-risk travelers.
4. Access to Expedited Lanes: Travelers with a KTN can use dedicated lanes at security checkpoints and immigration counters, reducing wait times and enhancing the overall travel experience.
5. Sharing the KTN: Travelers should provide their KTN when booking flights or making reservations to ensure they receive the associated benefits. It should be entered in the “Known Traveler Number” or “Trusted Traveler Number” field when booking airline tickets.
6. Membership Duration: Trusted traveler program memberships and KTNs typically have a set duration, after which travelers may need to renew their enrollment.
7. Global Usage: While KTNs are often associated with U.S. programs, some countries have similar trusted traveler programs that offer expedited processing for international travelers.
8. Privacy and Data Security: Trusted traveler programs prioritize the security and privacy of individuals’ personal information. The data collected during the enrollment process is safeguarded to protect travelers’ identities.

In conclusion, the Known Traveler Number (KTN) is a valuable tool for travelers who seek a more efficient and convenient travel experience. By enrolling in trusted traveler programs and obtaining a KTN, individuals can enjoy expedited security screening and immigration clearance, saving time and reducing the stress associated with air and border travel. Travelers are encouraged to familiarize themselves with the specific benefits and requirements of the trusted traveler programs available to them and ensure they use their KTN when making travel arrangements.