Explore tips on using your device internationally

Looking for ways to save on your wireless bill while you travel? Find tips to help manage your cost.

Use data, talk, and text internationally

To use cellular data, make sure data roaming is turned on and airplane mode is turned off in your device settings.
To call or send a message to the U.S., press +1 followed by the 10-digit number. The + sign usually appears if you press and hold the 0 key on your dial pad.
To call or send a message to another country, press + (country code) followed by the local phone number.
Some devices have settings that automatically add the correct prefix or country code when you’re calling numbers in your contacts. For iOS, turn on Dial Assist in your device settings.

Manage device data roaming

You can turn data roaming on or off for your device.

Apple

Open your device Settings, tap Cellular, then Cellular Data Options. In the SIM section, if you have:

An eSIM: Select Primary and then toggle the Data Roaming switch on or off.
A physical SIM card: Toggle the Data Roaming switch on or off.

Android

Open your device Settings, tap Connections, then Mobile networks. Toggle the International Data Roaming switch on or off.

Get the most value with International Day Pass

Add AT&T International Day Pass®¹ and you can use your phone in over 210 destinations, on select international flights, and on over 400 cruise ships. You’ll be charged $12 per 24 hours on land and air, and $20 per 24 hours at sea for each day that you use your phone.

Use your domestic data plan to email, use maps, convert currency, and more. At sea, after 500MB of data use within a 24-hour period, data speeds may be reduced to a maximum of 512Kbps on certain ships. The highest available data speed will be restored at the beginning of the next 24-hour period.
Use your domestic talk plan. You can receive calls, make unlimited calls back to the U.S., to the destination you’re in, and to destinations included in International Day Pass. Calls to other destinations also include an International Long Distance charge.
Send unlimited texts to the world. Texts received are rated as domestic and don’t charge a daily fee.

Get an overview of AT&T International Day Pass

Good to know:

When traveling with your family, everyone can use International Day Pass. For land or airline usage, it’s $6 for each additional line on the same account, if used the same day. There are no discounts for additional lines used at sea. Each line is charged $20 per day for each day used at sea.
When you don’t plan to use your phone, put your phone in airplane mode, turn on Wi-Fi, and turn off Wi-Fi calling in your device settings to avoid unintended charges.

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Last updated: July 25, 2025