The cost of roaming outside the EU varies for different countries and it can be significantly more expensive than roaming in the EU.
If you are planning to travel outside the EU, we advise you to always contact your service provider and check the roaming costs for the country you are visiting. Your service provider may offer alternative roaming tariffs at discounted rates.
We have a page on our website with advice and information on using your mobile outside the EU. This includes information on the alerts you should receive when roaming outside the EU and how you can manage your roaming costs, including on a ferry or a plane, where you might inadvertently roam.