Europe eSIM

eSIM Europe: FAQ

• 1Which eSIM do I need for a trip to several European countries?

  A regional Europe pack covers several countries with one eSIM, so you do not need a new plan at every border. It suits rail trips, road trips and city-hopping. The country list is shown with each plan on this page; check it for every country on your route, especially non-EU ones such as Switzerland, the UK, the Western Balkans or Turkey, and microstates such as Andorra, Monaco and San Marino. Install it at home and you are online when you land in your first country.

• 2I'm travelling to Europe from the US or Canada: does my phone plan cover it?

  EU “roam like at home” rules apply only to SIMs from the EU, Iceland, Liechtenstein and Norway, not to US or Canadian plans. US carriers usually charge a daily fee per line while you use your phone abroad (AT&T International Day Pass, Verizon TravelPass), and background app data alone can trigger it. Some T-Mobile plans include data abroad, often with a limited high-speed allowance before speeds drop sharply. Canadian carriers usually charge a daily roaming fee (Bell Roam Better, Rogers Roam Like Home, TELUS Easy Roam). On a one- or two-week trip those daily fees add up; a MonoEsim prepaid Europe pack is one fixed price for the whole trip.

• 3Will my phone from the US or Canada work with a European eSIM?

  Yes, if it supports eSIM and is not carrier-locked. Dial *#06#: if an EID appears, the phone supports eSIM. Recent iPhones sold in the US are eSIM-only, which works fine with a travel eSIM. Check for a carrier lock in your settings or ask your carrier to unlock the phone before you travel.

• 4What happens when I cross a border?

  If the next country is included in your pack, the phone switches to a partner network there automatically. Near borders, on lakes and along coasts it can also pick up a neighbouring country's network; if that country is not included, select a network manually. On ferries and cruise ships, phones often switch to expensive on-board or satellite networks at sea, which are not covered: use airplane mode there.

• 5How much data do I need for a European trip?

  As a guide, a one-week city break with maps, train tickets, WhatsApp and social media usually needs 3–5 GB. Two to three weeks by rail or car through several countries, with navigation, music and a hotspot, is more comfortable with 10–20 GB. Download offline maps before you go.

• 6Can I make calls, and when should I install the eSIM?

  The MonoEsim eSIM is data-only, without a European number: call over WhatsApp, FaceTime or Signal. Your home number stays active on a dual-SIM phone for bank texts; turn off data roaming on that line. Install the eSIM at home on Wi‑Fi a day or two before you fly and keep it off until you land; validity usually starts with the first connection in a covered country. If it does not work for technical reasons, MonoEsim support will find a solution or refund you.

• 7Which eSIM do I need for Europe?

  For Europe, MonoEsim offers data packs from 500 MB to 100 GB valid for up to 180 days plus unlimited plans. For a one-week trip with maps, messengers and social media, 3–5 GB is usually enough.

• 8How much does mobile data in Europe cost with an eSIM?

  An eSIM for Europe starts at $3.99 at MonoEsim. No contract and no hidden roaming fees — you only pay for the pack you choose.

• 9Does the eSIM work in all 41 countries?

  One pack covers 41 countries; the full list is on this page. The eSIM uses local partner networks with 4G and, depending on the country, 5G. In remote areas coverage can be weaker, as with any SIM.

• 10Do I need roaming in Europe?

  No. The MonoEsim eSIM uses a local network. Turn data roaming on for the eSIM line only and off for your regular SIM — so your home carrier charges no roaming fees.

Our guides: Europe

eSIM for Europe 2026: A Guide for Travelers from the US and CanadaItaly eSIM 2026: Phone and Data Guide for Travelers from the US and CanadaFrance eSIM 2026: Phone and Data Guide for Travelers from the US and CanadaUK eSIM 2026: Phone and Data Guide for Travelers from the US and CanadaSpain eSIM 2026: Phone and Data Guide for Travelers from the US and CanadaGreece eSIM 2026: Island-Hopping Data Guide for Travelers from the US and Canada