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Is the ESTA application number the same as the authorization number?

The ESTA application number is the unique identifier of the request and also proves authorization to travel, with no separate authorization number existing.

Written by

Victoria Harper

Editor-in-Chief

Updated on October 7, 2025
2 min read
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ESTA (Electronic System for Travel Authorization) is an online tool that allows citizens of participating countries to request authorization to travel to the United States without a visa for stays up to 90 days. Upon submitting your application, you receive an application number, which is used to track the status of your request.

In practice, this application number is the unique identifier of your request and, once ESTA is approved, it also serves as a reference for your authorization. Thus, there is no separate number exclusively called ”authorization number”: the number initially provided when applying is the same that proves your authorization to travel.

It is important to keep in mind that, regardless of how the system operates, you must always follow the rules and procedures established by the United States immigration authorities. If you have any doubts or need detailed information about your status, the best approach is to consult the official ESTA website directly or contact the official U.S. government channels.

Also, be cautious of third-party offers promising miraculous solutions or guaranteed results; the security of your trip depends on verifying information with official sources and acting in compliance with current legislation. Staying well informed and using trustworthy sources is essential to avoid future complications and ensure a smooth experience when entering the United States.

Learn more about ESTA

All about ESTA
Victoria Harper

Editor-in-Chief

Meet the author

Leading journalism and editorial content at Visto n’ Visa, Victoria helps make immigration topics clear, trustworthy, and easy to understand. Her focus is on delivering useful, human, and relevant content for people exploring new paths abroad.

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Is the ESTA application number the same as the authorization number?

The ESTA application number is the unique identifier of the request and also proves authorization to travel, with no separate authorization number existing.

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