Where EU Roaming Does Not Apply: Switzerland, the UK, Turkey, the Balkans and Beyond

If your SIM card comes from an EU or EEA country, you probably don't think about roaming when you travel to Spain, Italy or Sweden. The roam like at home rules take care of that. But those rules stop at clear borders, and some of them are much closer than people expect. A weekend in Zurich, a beach holiday in Antalya or a road trip into Montenegro can all lead to roaming charges. This guide explains where EU roaming applies, where it does not, and how to stay connected in the gaps.

How roam like at home works

Under the EU roaming rules, a mobile plan from any of the 27 EU countries, or from Iceland, Liechtenstein or Norway, can usually be used in all of these countries as if you were at home. Calls, texts and data come out of your normal allowance, usually with no daily fee on top.

Three points are worth knowing:

• Fair use limits can apply. If your plan includes a very large data allowance, your operator may limit how much of it you can use abroad and charge for anything above that limit.
• Europe on the map is not the same as the EU. Several countries in Europe, including some that use the euro, are outside the zone.
• Outside the zone, your operator sets the price. It may sell a daily pass, charge per megabyte or block mobile data completely. Check your current tariff before you go.

Switzerland, including the border areas

Switzerland is surrounded by EU countries, but it is not part of the EU roaming zone. Depending on your operator, Switzerland may be billed as a separate zone, covered by a paid add-on or charged per megabyte, so a few days of maps, messages and email can cost more than you expect. Check your tariff before a ski holiday or a train journey across the Alps.

The border areas need extra care. Near the Swiss border, for example around Lake Geneva, Basel, Lake Constance or Lake Lugano, a phone can silently connect to a Swiss network while you are still in France, Germany, Austria or Italy. Two simple habits help:

• Near the border, look at the network name your phone is using. If it shows a Swiss network, you are roaming outside the EU zone.
• In your phone's network settings, you can change network selection from automatic to manual and choose a network from the country you are actually in.

If you are staying in Switzerland itself, a Swiss eSIM is the easier answer: your mobile data runs on the eSIM, and data roaming stays off on your home line.

The United Kingdom

Since Brexit, the UK is no longer automatically part of the EU roaming zone. Whether you pay extra there depends on your operator: some still include the UK in your normal allowance, while others charge a daily fee or their standard rates for countries outside the EU. Many travellers assume nothing has changed, so check your current tariff before a trip to London, Edinburgh or Manchester.

Turkey

Turkey is a popular holiday choice for many Europeans, from city breaks in Istanbul to beach resorts around Antalya and Bodrum, but it is outside the EU roaming zone. Roaming there is usually charged by the day or by the megabyte, and holiday use adds up quickly: maps, taxi apps, photos for social media and video calls home.

The Western Balkans

Albania, Bosnia and Herzegovina, Montenegro, North Macedonia and Serbia are not in the EU, so roam like at home does not apply there. This surprises many people on holiday in Croatia: a day trip from Dubrovnik to Kotor in Montenegro or to Mostar in Bosnia and Herzegovina takes you outside the zone. The coast road between Split and Dubrovnik can also pass briefly through Bosnia and Herzegovina at Neum.

Croatia, Slovenia, Greece and Bulgaria are EU countries, so your normal allowance works there. For a trip that mixes both, HelloSIM's Balkans plan covers Albania, Bosnia and Herzegovina, Bulgaria, Croatia, Montenegro, North Macedonia, Serbia and Slovenia on one eSIM.

Andorra and Monaco

Andorra, high in the Pyrenees between France and Spain, is outside the EU roaming zone, and using your phone there can be expensive if your plan does not include it. Ski trips and shopping days are typical examples. Monaco is different: whether it counts as roaming depends on your operator, so check your tariff before a day out from Nice.

The Faroe Islands and Greenland

The Faroe Islands and Greenland are part of the Kingdom of Denmark, but they are not in the EU, and EU roaming does not apply there. Do not assume that a Danish SIM is covered either. Outside the main towns the signal can be limited, so download offline maps.

Gibraltar

Gibraltar, at the southern tip of Spain, is a British overseas territory and is outside the EU roaming zone. Many visitors come for the day from the Costa del Sol, so check your tariff and watch which network your phone is using near the border.

Cruises, ferries and flights

Ships and planes are a special case. On a cruise ship, and on some ferries, your phone can connect to a maritime network that works via satellite; on some flights, it can connect to an in-flight network. These networks are not covered by EU roaming, even in EU waters or between two EU countries, and they can be very expensive.

• At sea and in the air, put your phone in airplane mode. You can switch Wi-Fi back on to use the ship's or the airline's Wi-Fi.
• Alternatively, turn off data roaming on your home line for the whole journey.
• Use mobile data in port, where your phone connects to a normal land network again.

Long-haul trips outside Europe

Everything outside Europe is outside the zone. Trips to the USA, Thailand, Egypt or the UAE are charged at your operator's international rates, often by the day or by the megabyte, and the cost adds up fast on a two-week holiday. A country eSIM covers a single destination, and regional plans such as North America or Asia Pacific cover multi-country trips.

The practical fix: one eSIM for the gaps

A travel eSIM gives you prepaid data where your home plan does not reach, so there is no roaming bill to worry about. HelloSIM's Europe plan covers more than 40 countries, including Switzerland, the UK, Turkey, Albania, Bosnia and Herzegovina, Montenegro, North Macedonia and Serbia, as well as all the big EU destinations. One eSIM therefore works for a route such as Munich, Zurich and Milan, or a summer that takes in London, Istanbul and the Albanian coast. Check the plan's country list before you buy.

• HelloSIM eSIMs are data-only. Your own SIM stays in the phone for calls and texts, and WhatsApp keeps working with your usual number.
• The QR code is delivered by email straight away after payment, and the validity starts when the eSIM first connects to a network at your destination.
• If you run low on data, you can top up the same eSIM without reinstalling it.

Because the Europe plan also covers EU countries, its validity can start as soon as it connects anywhere in its coverage area. If you only need it for the Swiss or Turkish part of your trip, keep the HelloSIM line switched off until you get there.

Before you go: a quick checklist

1. 1Check your tariff: which countries are included, and what roaming costs outside the zone.
2. 2Check that your phone supports eSIM and is carrier-unlocked: look for an Add eSIM option in Settings.
3. 3Install the eSIM at home over Wi-Fi. On iPhone, go to Settings → Mobile/Cellular → Add eSIM; on Android, look under Settings → Network & internet or Connections → SIM manager.
4. 4When you arrive, switch the HelloSIM line on, set it as the line for mobile data and turn on Data Roaming for it. This is needed and costs nothing extra, because the data is prepaid.
5. 5Turn data roaming off on your home line so that it cannot run up roaming charges.
6. 6On ships and planes, use airplane mode unless you are on Wi-Fi.