A Mediterranean cruise links ports in several countries: Barcelona, Marseille, Civitavecchia for Rome, Naples and Valletta on one itinerary, Piraeus, Dubrovnik, Kotor and Kuşadası on another. For your phone the trip falls into three parts: EU ports, where EU roaming applies to EU SIMs; non-EU ports, where it does not; and sea days, when some ships run their own network, billed separately.
This guide covers choosing an eSIM for a Mediterranean cruise: the ports outside EU roaming, the plan that covers most ports on the route, the ones it misses, and sea days.
Key facts for a Mediterranean cruise
- One plan for most ports: Europe Extended covers 56 destinations, including Spain, France, Italy, Malta, Greece, Croatia, Montenegro, Turkey and Gibraltar
- Not in Europe Extended: Monaco, Morocco, Tunisia and Egypt, which each have their own country plans
- EU roaming: applies in EU ports for EU SIMs, but not in Montenegro, Turkey, Monaco, Gibraltar, Morocco, Tunisia or Egypt, and never on the ship's own network
- Emergency numbers: 112 in EU ports, Montenegro and Turkey, and from a mobile in Monaco; 999 in Gibraltar
EU ports and non-EU ports
With an EU SIM, the EU ports work under Roam Like at Home. Kotor does not yet: Montenegro is not covered, although negotiations to bring it in opened in June 2026. Turkey is outside, though some operators include it voluntarily, and so are Monaco, Gibraltar, Morocco, Tunisia and Egypt.
With a SIM from outside the EU you usually pay roaming in every port, so one plan for the route matters even more.
Monaco, Gibraltar and other network traps
Monaco is surrounded by France, so a phone can move between French and Monaco networks within a few streets, even on the French side. Monaco is in neither Roam Like at Home nor Europe Extended.
Gibraltar sits within sight of Spain and Morocco, so a phone there can connect to a Spanish or a Moroccan network. On Greek islands facing Turkey, such as Rhodes or Kos, it can join a Turkish one. Choosing the network manually in your phone's mobile settings avoids surprises.
Sea days on the ship's network
Near the coast and in port, phones usually connect to land networks. Further out, some ships run their own onboard mobile network, which home operators bill separately, outside Roam Like at Home, even between two EU ports. Turning off data roaming on your home line before you sail is the safest choice.
Which plan fits your trip
For most itineraries, Europe Extended is the plan to start with: one eSIM for the EU ports and for Kotor, the Turkish ports and Gibraltar too. With an EU SIM it still helps for those non-EU ports, or when your tariff gives you little data abroad.
If your ship calls at Monaco, Morocco, Tunisia or Egypt, add that country's plan for the day, such as Monaco plans.
For sea days, Telcomia's maritime plans work on ships that run an onboard mobile network: 100 MB for seven days, or 500 MB, 1 GB, 2 GB or 5 GB for 30 days. Use them for messages and essentials. Standard plans are data only, with calls through apps, and each plan's details show the Activation line, the duration, the data and whether you can share the connection with other devices.
Before you leave
- Install your eSIMs at home on Wi-Fi before you board.
- Set the eSIM you are using as the line for mobile data, with data roaming on for it and off for your home line.
- Check each port against the plan's destination list, and add a plan for any port it misses.
- If you want the maritime plan, check with your cruise line that the ship runs an onboard mobile network.
- Keep your eSIMs until the cruise is over: some can be installed only once.
Consular protection: a different country every day
- 112 works in every EU port, in Montenegro and Turkey, and from a mobile in Monaco; in Gibraltar, dial 999.
- In Morocco, 19 is the police and 15 the ambulance and fire service; in Tunisia, 197 is the police, 190 an ambulance and 198 the fire service.
- Embassies are mostly in the capitals, with consulates in some port cities; Gibraltar has none, and France and Italy have embassies in Monaco. 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 a non-EU country on your route, such as Montenegro, Turkey, Morocco or Tunisia, 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). This right does not apply in EU ports.
- Emergency phrases in Spanish, French, Italian, Greek, Croatian, Turkish and Arabic are ready to show on screen in the app.
Montenegro travel-safety page →
Questions travellers ask about a Mediterranean cruise
Does EU roaming work on a Mediterranean cruise?
In EU ports, yes, with an EU SIM. It never applies on the ship's own network at sea, even between two EU ports.
Which ports are outside EU roaming?
Kotor, Istanbul, Kuşadası, Monaco, Gibraltar and the ports of Morocco, Tunisia and Egypt. With an EU SIM, check your tariff before using data there.
Will my phone work at sea?
Near the coast and in port, on land networks. Further out, only if the ship runs an onboard mobile network: your home operator bills it separately, while the maritime plan works on it. Otherwise, use the ship's Wi-Fi.
Is there one plan for every port?
Europe Extended covers most of them, including Kotor, the Turkish ports and Gibraltar. Monaco, Morocco, Tunisia and Egypt need their own country plans.
The short version
Europe Extended covers most Mediterranean ports on one eSIM, EU and non-EU alike; Monaco, Morocco, Tunisia and Egypt need their own plans. At sea, keep data roaming off on your home line and use the ship's Wi-Fi, or the maritime plan if the ship runs an onboard mobile network, for messages.
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