Travel essentials
Can I keep my phone number with a travel eSIM?
Learn how to keep your home number with a travel eSIM, choose data and call settings, and check roaming charges and verification texts.
The short answer
You can keep your existing number when adding a travel eSIM. On a supported dual-SIM phone, the travel line can handle mobile data while your home line remains available for calls and texts. Your home carrier's roaming rules still apply, and a data-only travel plan doesn't include ordinary phone calls or SMS.
Does adding an eSIM replace my home number?
Adding a second line does not transfer or cancel your existing number. Your home service stays with its carrier. You choose which lines are enabled and what each one does on the phone.
Check that your device supports the combination you need, especially if both lines are eSIMs. Apple's travel eSIM guidance covers using a home line alongside travel data. Google's Pixel dual-SIM instructions explain separate preferences for calls, texts and data.
Which line should I use for data, calls and texts?
Set the travel eSIM as the mobile-data line when you are ready to use it in a covered destination. Make a separate choice for ordinary calls and texts. The data setting alone doesn't move your home number onto the travel plan.
| Activity | What to check |
|---|---|
| Maps, browsing and internet messaging | Select the travel eSIM for mobile data. |
| Calls through the phone dialer | Check the selected voice line and its charges. |
| SMS to your existing number | Keep the home line available if your carrier supports service there. |
| Calls through an internet app | Confirm the app works over your chosen data connection. |
On iPhone, the mobile-data choice is under Settings, Cellular, then Cellular Data. On Pixel, start with Settings, Network & internet, then SIMs. Names and available options vary by software and device.
Review automatic data switching so the phone doesn't use the home line for data unexpectedly. Some dual-SIM behavior also changes during calls, so follow the instructions for your model.
Will I be charged for keeping my home line on?
That depends on your home carrier's plan and how you use the line. Turning off data roaming on the home line addresses roaming data, but doesn't establish the price of voice calls, SMS or other carrier services.
Before leaving, ask the carrier what it charges in your destination and whether a travel pass activates through particular activities. If you want to disable the home line entirely, first consider whether you need incoming calls or verification texts.
Apply the travel eSIM's roaming setting separately. Some travel plans require data roaming on their own line. Follow the selected plan's instructions rather than turning roaming off everywhere.
Can I still receive bank verification texts?
You may be able to receive them on your home line if the carrier supports roaming there and the sender delivers the message. A travel data plan alone won't receive SMS addressed to your home number. Delivery and fees need confirmation from the relevant carrier and service.
Before departure, review the sign-in options for services you rely on. Set up an alternative authentication method where the service supports it. Avoid discovering at the airport that access depends on a text you cannot receive.
What should I do when I return home?
Check that your home line is enabled and selected for your everyday mobile data. Turn off the travel line when you no longer need it. Keep any plan you expect to reuse installed until you've checked its reuse rules.
Check phone compatibility before choosing a dual-SIM setup, then browse destination plans for your trip.
Before you choose a plan
For an estimate based on your own phone use, read How much mobile data do I need for a trip?.
To plan setup and check when your plan’s validity starts, read When should you install your travel eSIM?.