The Naples tramway network (Italian: Rete tranviaria di Napoli) is located within the city and comune of Naples, in the region of Campania, southern Italy. In operation since 1875, the network has waxed and waned in size and vitality over the years, and is now growing once again. It is now 11.8 km (7.3 mi) long, and comprises three routes, known as lines 1, 2 and 4.