Greece travel guide
Emergency numbers, how to stay online, and the apps locals use. Save this page before you fly.
Emergency numbers
Tap a number to call it.
Mobile data in Greece
- Good 4G and 5G in Athens, Thessaloniki and the popular islands.
- Signal can drop at sea on ferries and in remote mountain areas.
- Your eSIM connects as roaming on local networks, so turn on Data Roaming for it when you land. There are no extra roaming charges.
Useful apps
- Ferryhopper: compare and book ferries between the islands
- FREENOW: book licensed taxis in Athens and other cities
- Uber: books licensed taxis in Athens
- Google Maps: directions and places
Good to know
- The Tourist Police (1571) help visitors in English.
- Download offline maps on Wi-Fi before island hopping.
Greece eSIM plans
See all Greece plans →Stay online from the moment you land
Install your eSIM at home on Wi-Fi. Your plan only starts when it first connects to a network in Greece.
Get a Greece eSIMChecked on 2026-10-22. Numbers and rules can change, so please check locally when you arrive. In a life-threatening emergency, call the local emergency number right away.