Known Traveler Number (KTN) definition

The Known Traveler Number is your membership number with a Trusted Traveler Program. The KTN is a 9-digit number that usually begins with 98 and can be found on your Trusted Traveler Program website.

The KTN allows you to access TSA PreCheck security lanes and Global Entry lanes. When booking flights, there is usually a box where you can enter your Known Traveler Number (KTN) to take advantage of the program.

What is the Trusted Traveler Program?

The Trusted Traveler Programs, managed by the Department of Homeland Security, are "risk-based programs to facilitate the entry of pre-approved travelers". Applicants are assessed to ensure that they meet the requirements.

To obtain a Known Traveler Number, you must participate in one of the four Trusted Traveler Programs:

1. Global Entry
2. NEXUS
3. SENTRI
4. TSA PreCheck (recommended for travel within the U.S.)

How do I submit my application for CBP review?

To become part of the TTP, you must complete the application then submit it to the U.S. Customs and Border Protection (CBP) for review.

The steps for submitting an application are as follows:

1. Complete the application
2. Pay the processing fee
3. Submit to the CBP for review

Applicants should be aware that once their request has been submitted, it is not possible to make any changes.

How do I find my Known Traveler Number?

You may find your Known Traveler Number (sometimes known as the CBP PASSID) on the back side of your Global Entry, NEXUS, or SENTRI card.

If you only belong to the TSA PreCheck program, you must log in to the Trusted Traveler Program website to check your CBP PASSID, which is your KTN. If you lose your Global Entry, NEXUS, or SENTRI card, you can use the Trusted Traveler Program site to recover your number.