A Balkans road trip might run from Ljubljana down the Croatian coast to Dubrovnik, around the Bay of Kotor and through Albania to Lake Ohrid, with detours to Mostar or Belgrade. That route crosses several borders, yet only Croatia and Slovenia are inside the EU's Roam Like at Home area.
This guide explains the roaming patchwork, the border trap on mountain and coast roads, and why one eSIM for a Balkans road trip beats a SIM per country.
Key facts for a Balkans road trip
- One plan for the route: Europe Extended covers 56 destinations, including all eight countries here
- EU roaming: Croatia and Slovenia only
- Emergency numbers: 112 works in most of the eight; local numbers differ (see below)
- Embassies: in each capital; some countries cover Montenegro from a neighbouring capital
Two EU countries, six outside
In Croatia and Slovenia, both EU members, an EU SIM works as at home. The other six are outside Roam Like at Home: the Council of the EU opened negotiations in June 2026 to bring the Western Balkans in, but until an agreement applies, EU operators can still charge roaming there, often by the day. Some already include Montenegro, so check your tariff.
A SIM from outside the Roam Like at Home area pays roaming in all eight countries unless its tariff includes them.
The border trap on mountain and coast roads
Near a border, a phone can connect to the strongest signal, even one from the next country. Balkan roads often run close to borders: the old coast road from Split to Dubrovnik passes through Neum in Bosnia and Herzegovina, and at the southern end of Lake Ohrid phones can pick up an Albanian network. On a home SIM, that means roaming.
With Europe Extended, a switch between two of the eight countries stays within the plan. On a country plan, or on an EU SIM in Croatia or Slovenia, set network selection to manual near the border and pick a local network.
Mountain roads and canyons, for example around Durmitor in Montenegro or Theth and Valbona in Albania, have patchy coverage, so download offline maps first.
One eSIM for a Balkans road trip, not a SIM per country
A local prepaid SIM means a shop stop and a new number in each country, and in Montenegro, Albania, North Macedonia, Serbia and Kosovo you need your passport to register one. A Europe Extended eSIM is installed once at home and covers the whole loop, while your home SIM keeps your own number.
Which plan fits your trip
For a route through two or more of these countries, Europe Extended plans are the simplest choice; with an EU SIM, you need one only beyond Croatia and Slovenia, so make it your data line before you leave them. If most of your days are in one country, its own plan may fit better, for example Albania or Montenegro, but it works only there.
Telcomia's standard plans are data only: no local number or SMS, with calls through apps such as WhatsApp. The plan details show the Activation line, which gives the start of the validity period, plus the duration, the data and whether sharing the connection is allowed.
Before you leave
- Install the eSIM at home on Wi-Fi and keep it until the trip ends; some eSIMs can be installed only once.
- Make the eSIM your mobile data line, with data roaming on for it and off for your home line.
- Find manual network selection in your phone's settings.
- Download offline maps for the whole route.
- Save each country's emergency numbers and your accommodation addresses.
- Check the travel-safety pages for your route.
Consular protection: numbers differ by country
- 112 works in Croatia, Slovenia, Montenegro, Albania and Kosovo, and from mobiles in North Macedonia. Slovenia's police are on 113; Albania's are on 129, and its ambulances on 127.
- In Croatia, North Macedonia, Serbia and Kosovo, 192 is the police and 194 an ambulance; in the first three, 193 is the fire service.
- In Montenegro and Bosnia and Herzegovina, 122 is the police, 123 the fire service and 124 an ambulance.
- Embassies are in each capital; some countries cover Montenegro from a neighbouring one. 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 Montenegro, Bosnia and Herzegovina, Albania, North Macedonia, Serbia or Kosovo, 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).
- The app keeps key emergency phrases ready to show on screen, including Croatian and Slovenian.
Questions travellers ask about a Balkans road trip
Does EU roaming work in the Balkans?
On this route, only in Croatia and Slovenia. The other six stay outside Roam Like at Home until an agreement from the June 2026 negotiations applies.
Will one eSIM work across all the borders?
Yes, if its plan covers every country on the route, as Europe Extended does for all eight here. A country plan stops at its own border.
Do I need a local SIM in each country?
No. One Europe Extended plan on an eSIM covers the route, with no shop stops and no new numbers.
What about the regional Balkan roaming deal?
Since July 2021 it has removed roaming charges between the six non-EU countries on this route, but only for SIMs from those countries. It does not help visitors.
The short version
On this route, EU roaming covers only Croatia and Slovenia. One Europe Extended eSIM covers all eight countries: install it at home, keep roaming off on your home line, carry offline maps and save every country's emergency numbers.
Related reads:
Ready to stay connected without surprises?
Activate your eSIM in seconds and travel connected in 200+ countries and territories.
See plans