The Trenitalia network covers Italy nationwide, using the high-speed AV network, conventional main lines, regional railways, and ferry-linked routes to Sicily. Main high-speed corridors include Turin-Milan-Bologna-Florence-Rome-Naples-Salerno and Milan-Verona-Venice, with services also reaching cities such as Ancona, Bari, Reggio Calabria, and Bolzano on selected routes. Major hub stations include Roma Termini, Roma Tiburtina, Milano Centrale, Milano Rogoredo, Firenze Santa Maria Novella, Bologna Centrale, Venezia Santa Lucia, Napoli Centrale, and Torino Porta Nuova. Trenitalia operates Frecciarossa, Frecciargento, Frecciabianca, Intercity, Intercity Notte, and Regionale train categories across these corridors.