Piraeus is enormous, and Greek island catamarans frequently alter schedules when the summer meltemi winds pick up. Knowing your departure gate before you arrive at the port and tracking ferry updates live saves a frantic run across the docks.
Atli is data-only. It does not provide a Greek phone number, SMS or cellular voice calls. WhatsApp, Telegram, iMessage, FaceTime, maps and ferry apps work through the data connection.
Atli eSIM plans for Greece
| Data | Validity | Atli price | Good for |
|---|---|---|---|
| 1 GB | 7 days | $3.99 | A weekend in Athens |
| 3 GB | 30 days | $5.99 | About a week of maps and messaging |
| 5 GB | 30 days | $7.99 | One to two weeks of island hopping |
| 10 GB | 30 days | $15.99 | Longer trips with regular photo sharing |
| 20 GB | 30 days | $19.99 | Remote work, streaming or frequent hotspot use |
| Unlimited | 5 days | $9.99 | A short trip with heavy data use |
| Unlimited | 30 days | $37.99 | A month without tracking each gigabyte |
These prices were checked in August 2026. Plans and prices can change.
Three gigabytes covers about a week of maps, ferry timetables and messaging. Island hopping tends to use a little more than a city trip, because you check departures more often than you expect to. Choose 5 GB if you post photos most days, and 20 GB or unlimited if you will tether a laptop.
For a closer estimate, see how much data a trip really uses.
Only one of the two Greek networks has 5G
This is the thing to know before you buy: Wind, which has traded as Nova since January 2023, carries 2G, LTE and 5G, while Vodafone Greece carries 2G and LTE with no 5G.
Two separate things are going on there. The first is a name: Wind Hellas merged into Nova on 2 January 2023 and the Wind brand was retired, so the name is historical. It is the same network.
The second matters more. 5G in Greece, on Atli, means Nova. Vodafone Greece is listed with LTE and no 5G at all. Your phone attaches to whichever partner network it finds, and that is not something you select, so a Greek trip is an LTE trip with 5G as a bonus rather than the other way round. Neither network lists 3G either, so LTE is the floor rather than a fallback below it.
Cosmote is Greece’s largest operator and is not one of Atli’s partner networks.
Ferries and the islands
Ferryhopper covers schedules, bookings and delay notices for the Aegean and Ionian routes, which is where most Greek trips actually get decided. Book and download your tickets before you sail.
Now the part the internet is careless about. A network list describes which networks the eSIM attaches to and which technologies they carry. It says nothing about coverage at sea, and no operator promises a usable signal on open water. On a four hour crossing to Santorini you should expect to lose the connection and get it back, not plan around having it.
That has a practical consequence. Anything you need mid-crossing, including your onward booking, your accommodation address and the walking route from the port, wants to be saved offline before you board. Ports are also where a weak signal hurts most: everyone disembarks at once, and the local cell gets busy at exactly the moment you want a taxi.
On the islands themselves, towns and port areas are ordinary populated coverage. What happens on a cliff road, in a caldera or on a beach at the far end of a dirt track is not something any network list can tell you.
If you are choosing where to stay, compare the exact map pin with the port on Booking.com. On Santorini in particular, a caldera view and a short walk from the ferry are rarely the same address.
Keep your normal SIM for your phone number
On a compatible dual-SIM phone, your home SIM and Atli eSIM can have separate jobs: your own number stays on your home SIM for calls and texts, and mobile data in Greece comes from your Atli eSIM.
On a dual-SIM phone, set Atli as the cellular-data line and keep your primary SIM active for calls and texts. Turn off data roaming on your primary SIM to avoid unintended roaming data charges. If your carrier supports roaming, verification texts can still arrive on your primary SIM.
Read the dual-SIM travel guide for the settings to check before departure.
Greece-only plan or Europe regional plan?
A local Greece plan is the cheaper choice when the trip stays in the country. At current prices, 3 GB for 30 days costs $5.99 for Greece against $11.99 on the Europe regional plan.
The Europe plan covers 34 countries, and the ones people usually pair with Greece are on it: Italy, Turkey, Bulgaria and Cyprus. A Greece and Turkey trip, including the short ferry hops from Rhodes or Kos across to the Turkish coast, stays on one plan.
Albania is not on it. That matters if you are taking the Corfu to Saranda ferry, which is a common day trip and a short crossing. Albania has its own Atli local plan instead, starting at $3.99 for 1 GB over 7 days. North Macedonia is also outside the Europe plan and also has its own.
See the regional eSIM guide if your itinerary crosses several countries.
Travel eSIM or local Greek SIM?
A travel eSIM is convenient when you want data arranged before arrival. A local product may suit a longer stay, heavy data use or anyone who needs a Greek number.
Nova, Vodafone Greece and Cosmote all sell prepaid service directly. Those are separate local products rather than services supplied by Atli, and their terms and any registration requirements change, so check the current offer before buying.
For a broader comparison, see eSIM vs airport SIM vs pocket WiFi.
How to set up an Atli eSIM for Greece
Install the eSIM at home before you travel, while you still have reliable WiFi. Do not wait until you arrive: airport WiFi may be slow, require a login or fail when you need it. Check first that your phone supports eSIM and is carrier-unlocked.
Installing the eSIM does not start the plan. It starts when your phone first connects to a network at the destination. You have up to 30 days after purchase to make that first connection; after that, the plan starts automatically.
After arrival:
- Turn on the Atli eSIM.
- Select Atli as the cellular-data line.
- Turn on data roaming for that line.
- Leave your home SIM off for mobile data if you want to avoid home-carrier roaming charges.
Keep the Atli eSIM installed after the data plan expires. You need only this one eSIM profile: if you buy another plan later, it is added to the same eSIM automatically. There is nothing new to install. Data plans expire; the eSIM itself stays on your phone. Do not delete its profile.
FAQ
Does Atli work in Greece?
Does Atli get 5G in Greece?
Does Atli include a Greek phone number?
Can I keep my normal phone number?
Will I have a signal on the ferry between islands?
Will a Greece plan work in Italy or Turkey?
Will a Greece or Europe plan work in Albania?
Can I use my phone as a hotspot?
Can I receive bank verification codes?
Do I need a new eSIM when I buy another plan?
Checked against Atli’s current prices and networks and the Greek operators’ own information, August 2026.
The Booking.com link above is an affiliate link. Booking through it costs you nothing extra and helps keep Atli running.
