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What is an ESTA Application Number?

Updated: Aug 24, 2023 | Tags: ESTA Application Number, ESTA Submission

Introduction An ESTA application number is generated once an application is submitted to Customs and Border Protection (CBP). The application number is a unique identifier used by CBP to identify traveler profiles. The ESTA application number is an alphanumeric string of 16 characters. The sequence of characters is random and does not represent any attributes of an applicant. The application number…