Nearly all EuroNight services are international services (though a few large nations, including France and Germany, operate EN services nationally) and are jointly operated by various national rail companies, with many rail companies sharing cars on the route.
Næsten alle EuroNight-tjenester er internationale tjenester (selv om nogle få store lande, herunder Frankrig og Tyskland også driver dem nationalt) og er co-drivet af forskellige nationale jernbaneselskaber, som deles om enkelte ruter.