You ski from Zermatt over to Cervinia for lunch, or spend a week moving between French and Swiss villages in the Portes du Soleil. The snow does not change at the border, but your phone's network can: Switzerland and Andorra are outside the EU's Roam Like at Home area, while Austria, France and Italy are inside it.
This guide covers the border trap on the slopes, who to call for mountain rescue, what the cold does to your phone, and which eSIM for a ski trip in the Alps or Andorra keeps all five countries on one plan.
Key facts for ski trips in the Alps and Andorra
- One plan for all five: the Europe plan covers Switzerland, Austria, France, Italy and Andorra
- EU roaming: Austria, France and Italy are covered by Roam Like at Home; Switzerland and Andorra are not
- Border slopes: around Zermatt–Cervinia and in the Portes du Soleil, a phone can switch to the other country's network
- Mountain rescue: 112 in all five countries; in Switzerland, also Rega air rescue on 1414
- Embassies: mostly in Bern, Vienna, Paris and Rome; Spain and France have embassies in Andorra
The border trap on the slopes
A phone joins the strongest signal it finds, even from the neighbouring country, and in cross-border ski areas that can happen on the same slope. With an EU SIM, Italian and French networks are covered by Roam Like at Home but a Swiss one is not. With a Switzerland plan it is the other way round, because that plan works only in Switzerland.
Near the border, open your phone's mobile settings and choose the network of the country you are skiing in manually, changing it when you cross, or use one plan that covers both sides. Andorra works the same way on the road: arriving from Spain or France, the phone hands over to Andorra Telecom, and an EU SIM is then roaming outside Roam Like at Home.
Calling for help on the mountain
112 works in all five countries. In Austria, dial 112 on the mountain: it works from any phone and can go through another network in range when yours shows no signal; the alpine number 140 is meant for Austrian lines. Switzerland adds Rega air rescue on 1414, and in Andorra 112 reaches mountain rescue.
Higher up, behind ridges and in side valleys, the signal can come and go. Save the numbers before you go up, and tell your accommodation where you are going.
Cold, batteries and offline maps
Cold drains phone batteries faster, and a flat phone cannot call for help. Keep yours in an inside pocket, carry a charged power bank, and download the ski area's map and offline maps of the valley on Wi-Fi before the first morning.
Which plan fits your trip
If your trip touches Switzerland or Andorra, the Telcomia Europe plan keeps you on one eSIM: it covers all five countries, plus Germany and Liechtenstein, among 38 destinations. It suits a week in the Portes du Soleil, a day over to Cervinia or a road trip between resorts.
Staying in one country? Each of the five has its own plan, such as Switzerland or Andorra, and with an EU SIM you are already covered in Austria, France and Italy. The plan details show the Activation line, which explains how the validity period is counted, plus the duration, the data and whether you may share the connection.
Before you leave
- Install the eSIM at home on Wi-Fi and set it as your line for mobile data.
- Turn data roaming on for the eSIM and off for your home line.
- Find manual network selection in your mobile settings, and go back to automatic after the border slopes.
- Download offline maps of the ski area and the valley.
- Pack a charged power bank and save the rescue numbers below.
Consular protection: help in the mountains
- 112 works in all five countries; in Austria it works from any phone, while 140 is meant for Austrian lines.
- In Switzerland, 1414 calls Rega air rescue and 144 an ambulance; in Andorra, 112 reaches mountain rescue and 116 an ambulance.
- Embassies are mostly in Bern, Vienna, Paris and Rome. Spain and France have embassies in Andorra, and the UK and the US cover it from Barcelona. The Telcomia app shows which mission is responsible for you, with address and phone.
- If you are an EU citizen and your country has no embassy or consulate in Switzerland or Andorra, the embassy of any other EU country must help you on the same terms as its own nationals (Article 23 of the Treaty on the Functioning of the EU).
- The app keeps key emergency phrases in German, French and Italian ready to show on screen.
Switzerland travel-safety page →
Questions travellers ask about ski trips and roaming
Does EU roaming work in Swiss ski resorts?
Not by law. Switzerland is outside Roam Like at Home, so it depends on your operator: some include Switzerland, many charge roaming.
Why did my phone switch to an Italian network on the slopes?
Around Zermatt and Cervinia, it joined the strongest signal, even across the border. On an EU SIM that is covered; on a Switzerland plan it is not, so pick a Swiss network manually or use a Europe plan.
Which number do I call for mountain rescue?
112 in all five countries, including from a foreign SIM in Austria. In Switzerland, Rega air rescue also answers on 1414.
Does Andorra have EU roaming?
No. Andorra is outside Roam Like at Home, so a Spanish, French or other EU SIM pays its operator's roaming rates there.
The short version
Switzerland and Andorra are outside EU roaming, and border slopes can switch your phone between countries. Use one Europe plan or choose networks manually, save 112 and 1414, and keep your phone warm and charged.
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