| Keystone to Noventa Vicentina | 5,052.31 mi (8,130.91 km) |
| Keystone to Novi di Modena | 5,034.48 mi (8,102.21 km) |
| Keystone to Novi Ligure | 4,942.07 mi (7,953.49 km) |
| Keystone to Nuoro | 5,085.12 mi (8,183.70 km) |
| Keystone to Occhiobello | 5,064.33 mi (8,150.24 km) |
| Keystone to Oderzo | 5,081.25 mi (8,177.49 km) |
| Keystone to Oggiono | 4,941.46 mi (7,952.51 km) |
| Keystone to Olbia | 5,076.81 mi (8,170.33 km) |
| Keystone to Oleggio | 4,913.91 mi (7,908.17 km) |
| Keystone to Olgiate Comasco | 4,924.28 mi (7,924.86 km) |
| Keystone to Olgiate Olona | 4,924.32 mi (7,924.93 km) |
| Keystone to Omegna | 4,896.79 mi (7,880.62 km) |
| Keystone to Opera | 4,945.69 mi (7,959.31 km) |
| Keystone to Oppeano | 5,036.21 mi (8,104.99 km) |
| Keystone to Orbassano | 4,878.88 mi (7,851.79 km) |
