1 · The short answer
An Interrail trip crosses more borders in two weeks than most people cross in two years, and each one is a chance for a phone to stop working or start charging. One regional eSIM installed before you leave removes both. Ringo Light's Europe plan covers 28 of the 33 Interrail countries on one eSIM (33 European countries in all), as a trip plan: unlimited data at full speed, 2 weeks for $22.99 or 30 days for $35.99, with nothing that renews.
The 5 pass countries it does not cover: Bosnia and Herzegovina, Montenegro, North Macedonia, Serbia and Turkey. Bosnia and Herzegovina, Montenegro, Serbia and Turkey are on the Global plan. If your route runs through the western Balkans, read section 3 before you buy.
For a month or longer, or a trip that carries on past Europe, the Global plan is $49.99 a month for 133 countries and renews until you cancel. The card to buy either is below this article.
2 · Why a border on a train is different
At an airport you land, switch airplane mode off and deal with your phone while you wait for a bag. On a train there is no moment like that. You are in a tunnel under the Alps, or asleep on the Nightjet, and the network simply changes underneath you. Three things follow.
- Roaming starts silently. With an EU SIM you roam like at home inside the EU and EEA, usually with a data cap your carrier sets. Then the train enters Switzerland, and Switzerland is not in it. Nor is the United Kingdom for most EU carriers since 2021, nor Turkey, Serbia or Bosnia. The welcome text arrives after the first megabytes are already billed.
- Travellers from outside the EU have no safety net anywhere. An American, Australian or Indian SIM roams at its carrier's daily rate in all 33 countries, and the daily rate restarts at each border.
- Local SIMs do not fit the trip. A SIM bought in Paris is roaming by Thursday. Nobody buys six SIMs for a fortnight.
A regional eSIM is the shape that fits: one profile allowed on a partner network in every country on the list, re-registering on its own as the train crosses, with your own SIM still in the phone for calls and messages.
3 · The Interrail countries against the Europe plan
An Interrail Pass is valid in 33 countries. The Europe plan covers these 28 of them on one eSIM:
Austria · Belgium · Bulgaria · Croatia · Czechia · Denmark · Estonia · Finland · France · Germany · Greece · Hungary · Ireland · Italy · Latvia · Lithuania · Luxembourg · Netherlands · Norway · Poland · Portugal · Romania · Slovakia · Slovenia · Spain · Sweden · Switzerland · United Kingdom
Not on the Europe plan: Bosnia and Herzegovina, Montenegro, North Macedonia, Serbia and Turkey. Of those, Bosnia and Herzegovina, Montenegro, Serbia and Turkey are on the Global plan, which covers 133 countries. A route through the western Balkans is the one case where Global is the better buy from the start, or where you accept a day or two of Wi-Fi.
The list is read from our catalogue when this page is built, so it is current as of the date at the top, and it changes here the day it changes there.
4 · A fortnight of stations
A typical first Interrail: London or Amsterdam to Paris, Paris to Switzerland, over the Alps to Italy, up through Austria to Budapest or Prague, home by night train. Seven countries, nine stations, one eSIM.
5 · What the Interrail pass itself needs from your phone
Most passes are now mobile passes in the Rail Planner app. The timetable works offline, which is a relief on a slow regional line. But three things need a connection:
- Activating the pass and adding a journey to it before you board.
- Keeping the pass live. The app wants to sync now and then; leave it offline too long and it asks for a connection before it shows your ticket.
- Reservations. High-speed and night trains need a seat booked on top of the pass, and the booking sites, and the QR codes they send, live on data.
None of this is heavy. All of it is miserable with a phone that stopped connecting at the last border, in front of an inspector.
6 · How much data a day on the rails
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A travelling day sits well under 1 GB; the train is where people stream, and that is the number that moves. Download films on hostel Wi-Fi the night before a long leg. On Ringo Light you get unlimited data at full speed for the length of the plan: 2 weeks for $22.99 or 30 days for $35.99, nothing that renews. Our goes deeper.
7 · Which Ringo plan, and what it costs
Ringo Light is our own data eSIM, sold to fund the full Ringo, one plan that works everywhere with your own number ported onto it. Installed once, next to your own SIM. Your number stays on your own line for calls and messages; the eSIM carries the data.
- The Europe plan, for a pass of up to a month: unlimited data at full speed, 2 weeks for $22.99 or 30 days for $35.99, nothing that renews. 33 European countries on one eSIM.
- The Global plan, for a longer trip, a Balkan route, or a summer that carries on past Europe: $49.99 a month for 133 countries, renewing until you cancel.
Pay by card, Apple Pay or Google Pay and the eSIM arrives by email within seconds. Install it on Wi-Fi before the first train, set it as your data line, and turn Data Roaming on for it; that toggle is how a travel eSIM connects. Keep your own SIM on for calls and texts with its data roaming off.
The step-by-step is in our and .
