In the reorganisation of 1 July 1885 it acquired the lines of the Società per le strade ferrate dell'Alta Italia to the east of Milan, some lines from the Società per le Strade Ferrate Romane (Roman Railways) connecting Florence and Ancona to Rome and some branches of the old Società per le Strade Ferrate Calabro-Sicule in Calabria, now connecting to the Rete Mediterranea.
On 1 July 1885 its network was taken over by the Rete Mediterranea (Mediterranean Network) and the Rete Adriatica (Adriatic Network), with the coastal line from La Spezia to Pisa, Rome and Naples and the line from Pisa to Florence via Empoli going to the Rete Mediterranea and the lines from Rome to Florence and Ancona going to the Rete Adriatica.