SIM Cards and eSIMs for Greece: Carriers, Virtual SIMs, Calling Cards and Hotel Wi-Fi

You step off the ferry at a harbor, the café tables are filling, and your phone is still showing the last signal it caught at sea. You want a map, a message to the person holding your room key, a look at the weather before the next boat. In Greece the answer to staying connected depends on one thing, whether you hold a European Union passport or not, and the rest is a choice between a local SIM, a virtual SIM and old-fashioned calling cards.

How do you get mobile data in Greece?

You get mobile data in Greece either through the SIM card you already use (if you are an EU citizen) or through a Greek prepaid SIM or a virtual SIM loaded with data credit (if you are not). That single dividing line shapes everything else, so it is worth knowing which side of it you stand on before you pack.

For EU citizens, there are no Internet roaming charges in Greece. A local SIM card from home works for surfing the Internet as normal, which means maps, messaging and video calls behave the way they do on your own street. Nothing needs to be bought on arrival, and nothing needs to be switched on besides the usual roaming setting on the phone.

Non-EU citizens, which includes American travelers, have two routes. One is a Greek SIM card, the other is a virtual SIM card with prepaid data credit. The first puts a physical card in your phone and gives you a local line. The second arrives as a digital profile, the kind travelers call an eSIM, and carries data only. Both let you use the Internet in Greece without relying on your home plan.

The Greek carriers and the ID rule

Three mobile carriers serve Greece: Cosmote, Wind and Vodafone. By law, all three require identification to activate a prepaid plan. So a Greek SIM is not something you can pick up and switch on anonymously. Plan to have your identification with you at the moment of purchase, and expect the activation to be tied to it.

This rule is specific to buying a Greek prepaid plan. If you would rather not deal with an activation step at a counter, that difference is worth keeping in mind.

Will your phone work on Greek networks?

Greek mobile carriers support GSM 900, GSM 1800 and UMTS 2100 bands, and those are the figures to compare against your phone’s specifications. Travelers never open that menu, but if you carry an older or unusual handset, a quick look at its supported bands tells you whether a Greek SIM can reach the network.

Band	Supported by Greek carriers
GSM 900	Supported
GSM 1800	Supported
UMTS 2100	Supported

The table lists what the carriers support, not what your phone carries. If your handset is locked to a home carrier, a Greek SIM will not help, so that is a separate thing to settle before you leave.

Landing in Greece and getting online

A virtual SIM can be set up before the trip, which means the phone may already be ready when you land in Athens, Thessaloniki or on an island airport. A Greek SIM, by contrast, means a stop at a carrier shop with your identification in hand. Neither route asks for a long commitment, since both are prepaid. What changes is where the effort lands: before you fly, or after.

Think about the moments when you will really lean on the connection. Reading a ferry notice at the port, finding the way to a village guesthouse down a lane without a sign, translating a menu in a taverna where the owner has written the dishes of the day by hand. These are small errands, and they use little data, but they are the ones you notice when the signal is missing.

What are the options?

There are four options in Greece: your own home SIM (for EU citizens), a Greek prepaid SIM from Cosmote, Wind or Vodafone, a virtual SIM with prepaid data credit, and a prepaid calling card for calls home. Each solves a different problem, and some travelers combine two of them.

A Greek prepaid SIM

A Greek SIM from Cosmote, Wind or Vodafone gives you a local connection on a card you hold in your hand. Because all three carriers require identification by law to activate a prepaid plan, the purchase has a small ritual attached: you show your identification, the plan is registered, and then the line goes live.

This option suits someone who wants a local line and is happy to spend a few minutes at a counter. It also suits a traveler whose phone takes a physical card and who prefers to swap it rather than manage a digital profile. Keep your home SIM somewhere safe while the Greek one is in the tray.

A virtual SIM with prepaid data

A virtual SIM is the option that Greece’s non-EU visitors can choose instead of buying a Greek card. It is loaded with prepaid data credit, and you use that credit to surf the Internet in Greece. There is no card to carry, no tray to open and no shop to find.

What it gives you is data. Maps, messaging apps, ferry updates and photos going home are all things data can carry. If your plan is to stay in touch through apps, this is the shape of connection you are after. Your phone needs to support virtual SIMs, which is a matter of checking its settings or its specifications.

Your home SIM, for EU citizens

With no Internet roaming charges in Greece, a local SIM card from home works to surf the Internet as normal. If that describes you, buying anything else is optional, not required.

Prepaid calling cards and phone boxes

A prepaid calling card is the old way of reaching home, and it is still on the list. The card is used from a landline in Greece, and public phone boxes, which are widely available, accept it too. Between a hotel phone and a booth on a street, there is usually a landline to be found.

Calling card	Detail
Cost	About €1 for 45 minutes of international calling from a landline
Expiry	Usually 90 days after first use

The card is for calls, not for data. It does not replace a SIM if you want maps in your hand, but it works without a phone plan at all, which is its quiet appeal.

Which should you choose?

Choose by citizenship first, then by how you like to handle small errands. EU citizens can simply use their home SIM, and non-EU travelers pick between a Greek SIM and a virtual SIM with prepaid data credit, with a calling card as an extra for landline calls.

If you hold an EU passport

Keep the SIM you have. Greece applies no Internet roaming charges to EU citizens, so the card from home will surf the Internet as normal. The only reason to look further is a personal one, such as wanting a second line or a phone number on a Greek carrier.

Even then, you are choosing a convenience, not solving a problem. A traveler moving between Athens and the islands can carry on using the same phone and the same number the whole way.

If you are a non-EU traveler who wants data only

A virtual SIM with prepaid data credit fits this traveler. You surf the Internet in Greece without a local number, and you avoid the identification step that Cosmote, Wind and Vodafone require for a prepaid plan. Messaging apps cover most conversations, so a local number matters less than it once did.

Before you commit, make sure your phone supports virtual SIMs. If it does not, the Greek SIM is your route.

If you want a local line

A Greek SIM from one of the three carriers gives you a local connection and is the choice for a traveler who likes a physical card. Bring your identification to activate it, since the law asks for it. A handset that supports GSM 900, GSM 1800 and UMTS 2100 can use the Greek networks.

This route also appeals if you are staying a while and want your phone to behave like a local one. You may be setting up a rental, making reservations by phone or receiving calls from a host who prefers a Greek number.

If you mostly want to call home

A prepaid calling card handles international calls from a landline, and public phone boxes are widely available. Since the card usually expires 90 days after first use, it suits a single trip well. It is a small, cheap backup that does not depend on any phone plan.

Good to know before you go

Some older hotels in Greece still do not use WPA2/WPA3 mixed mode security, so a modern phone may refuse to connect to their Wi-Fi. If that happens, your mobile data, whether from a Greek SIM, a virtual SIM or an EU home plan, is the fallback. It is one more reason to settle your connection before you arrive.

For news in English, Greece offers the official Athenian-Macedonian news agency, Reuters, ΕΡΤ Greek Edition, IN and Kathimerini English Edition. They are the sources to open when a strike, a weather change or a ferry notice affects your plans, and a working connection is what lets you read them.

Sources

Wikivoyage, Greece (https://en.wikivoyage.org/wiki/Greece), checked October 12, 2026