| North Branch to Opwijk | 4,148.84 mi (6,676.91 km) |
| North Branch to Ostend | 4,094.01 mi (6,588.68 km) |
| North Branch to Oud-Heverlee | 4,171.23 mi (6,712.94 km) |
| North Branch to Oud-Turnhout | 4,162.14 mi (6,698.31 km) |
| North Branch to Oudenaarde | 4,133.20 mi (6,651.75 km) |
| North Branch to Oudenburg | 4,098.56 mi (6,596.00 km) |
| North Branch to Oupeye | 4,210.41 mi (6,776.00 km) |
| North Branch to Overijse | 4,168.65 mi (6,708.79 km) |
| North Branch to Overpelt | 4,181.25 mi (6,729.07 km) |
| North Branch to Paal | 4,180.24 mi (6,727.44 km) |
| North Branch to Peer | 4,186.03 mi (6,736.77 km) |
| North Branch to Pepinster | 4,222.41 mi (6,795.31 km) |
| North Branch to Peruwelz | 4,146.29 mi (6,672.81 km) |
| North Branch to Perwez | 4,185.11 mi (6,735.29 km) |
| North Branch to Philippeville | 4,193.51 mi (6,748.81 km) |
