- Native name
- Metropolitana di Napoli
- Owner
- Municipality of Naples (Lines 1 from Piscinola to Garibaldi ; Line 6), Regional Government of Campania (Line 11; Line 1 from Centro Direzionale to Miano )
- Locale
- Naples , Campania , Italy
- Transit type
- Rapid transit
- Number of lines
- 3 (+1 in construction)
- Number of stations
- 31 (interchange stations counted once)
- Annual ridership
- 42.17 million (2024)
- Website
- www .anm .it & www .eavsrl .it
- Began operation
- March 28, 1993 ; 33 years ago ( 1993-03-28 )
- Operator s
- Azienda Napoletana Mobilità (Line 1 and 6), Ente Autonomo Volturno (Line 11)
- System length
- 36.4 km (22.6 mi)
- Track gauge
- 1,435 mm ( 4 ft 8 + 1 ⁄ 2 in ) standard gauge
- Electrification
- 1,500 V DC overhead catenary