Luxembourg has three main mobile operators: POST Luxembourg, Tango, and Orange Luxembourg. HelloRoam eSIM plans connect via partner networks with 5G and 4G LTE across the country.
Luxembourg is one of the most connected countries in Europe per square kilometer. Luxembourg City has excellent 5G coverage across the historic city center, the Kirchberg plateau (EU institutions), Findel Airport, and all main residential and business districts. The country's small size means most rural areas are also within range of strong 4G.
The Ardennes region in the north around Vianden and Clervaux has 4G coverage in main towns and along main roads. The Moselle wine valley in the east has 4G throughout. The Esch-sur-Alzette industrial area in the south has solid coverage. Luxembourg's entire highway and rail network has consistent 4G. As an EU member state, EU SIM card holders can use their home plans here under EU roaming rules.