RegioExpress

thumb|RegioExpress (RE) Stadler KISS|train of SBB in in 2020 thumb|RegioExpress (RE) BLS RABe 535|train of BLS in , Italy, in 2017 thumb|Former RegioExpress service in the Seeztal between [[Flums and Mels in the canton of St. Gallen]] RegioExpress, commonly abbreviated to RE, is a category of fast regional train service in Switzerland, run by Swiss Federal Railways (SBB CFF FFS) or other railway companies (such as TILO, BLS, tpf, THURBO or RhB, previously also by transN). A few lines also serve stations in Germany, France and Italy. Since 2023, all RE services are numbered for more clarity. So