Using Duo while traveling internationally


This article provides information about using Duo during travel outside of the United States.


For travelers to US embargoed countries

Including: Cuba, Iran, North Korea, Sudan, Syria, and four regions of Ukraine (Crimea, Donetsk, Luhansk, and Sevastopol).

During travel to these areas, you will be unable to log in with Duo. You are required to uninstall the Duo Mobile app, required to leave Duo hardware tokens at home, and will be unable to access any UO services protected by Duo.

If you try to use a Duo-protected service in these areas, you will get an error message that reads, Access denied. Duo Security does not provide services in your current location in the Duo Prompt. For more information and the most up to date list of restricted areas, please refer to Duo's website.

For all other international travelers

If you will have access to Wi-Fi and cellular service with data, you can use the same method(s) you normally use. These methods all work overseas when your device has a data connection:

These methods will still work even if you can't connect to any cellular or data service:

Do SMS passcodes and phone callback work with international numbers?

Yes, they do! You can register an international number with Duo, just like a US number.

Print Article


Article ID: 108116
Tue 5/19/20 3:54 PM
Fri 2/2/24 12:44 PM

Related Articles (4)

Generally, most technology tools and services are available globally. There are, however, some nations that block traffic to and from specific services, and the Unites States maintains sanctions against certain countries that prohibit network communications.
List of recommendations for users planning to travel abroad with computing resources.
Troubleshooting advice for using an international phone number in Duo
This article provides information for Zoom usage when outside of the United States.