A known traveler number (KTN) on a Global Entry card is a unique identifier issued by U.S. Customs and Border Protection (CBP) to pre-approved, low-risk travelers. It allows for expedited clearance upon arrival in the United States by using automated kiosks rather than standing in traditional immigration lines.
KTNs on Global Entry cards have become increasingly important for frequent international travelers, offering benefits such as faster processing times, reduced waiting, and access to dedicated Global Entry lanes. The program was originally launched in 2008 as a response to the growing demand for expedited entry into the United States.
