 The number of provinces was doubled.The Roman towns built on the site of or near Vocontian settlements close to the Rhône, Vasio and Noviomagus, and those on the River Drôme, Dia Augusta and Lucius Augustii, came under the "Provincia Viennensis".Segusturo, and the area in the Alpes-de-Haute-Provence department came under the "Provincia Narbonensis II"

Rivet gives an account of the archaeological finds in Roman towns in Vocontian territory.