[5] While their number has dwindled as domestic water connections have become commonplace, there are still between 2,500 and 2,800 nasoni in greater Rome today, one tenth of them in the historical center.

Described as "hi-tech nasoni", these provide free tap and sparkling water as well as information for tourists and a place to recharge mobile devices.

[8] Aside from the social-welfare benefits of supplying drinkable water to citizens (especially those without their own access), nasoni serve as needed ventilation valves for the Roman water-supply system.

[6] According to estimates, operating a nasone costs the city of Rome approximately 3–5 Euro per day, depending on the strength of the water flow.

[7] In July 2017, Acea began to shut off some nasoni because drought had diminished the nearby Lake Bracciano, the city's main water reserve.