| Mastic to Noventa Vicentina | 4,069.53 mi (6,549.27 km) |
| Mastic to Novi di Modena | 4,055.16 mi (6,526.16 km) |
| Mastic to Novi Ligure | 3,967.78 mi (6,385.53 km) |
| Mastic to Nuoro | 4,139.36 mi (6,661.66 km) |
| Mastic to Occhiobello | 4,083.50 mi (6,571.76 km) |
| Mastic to Oderzo | 4,093.93 mi (6,588.54 km) |
| Mastic to Oggiono | 3,959.91 mi (6,372.86 km) |
| Mastic to Olbia | 4,126.34 mi (6,640.70 km) |
| Mastic to Oleggio | 3,934.78 mi (6,332.42 km) |
| Mastic to Olgiate Comasco | 3,943.44 mi (6,346.36 km) |
| Mastic to Olgiate Olona | 3,944.53 mi (6,348.10 km) |
| Mastic to Omegna | 3,916.41 mi (6,302.86 km) |
| Mastic to Opera | 3,966.75 mi (6,383.87 km) |
| Mastic to Oppeano | 4,054.00 mi (6,524.28 km) |
| Mastic to Orbassano | 3,905.51 mi (6,285.32 km) |
