| Mason to Juprelle | 4,180.92 mi (6,728.54 km) |
| Mason to Jurbise | 4,124.11 mi (6,637.11 km) |
| Mason to Kalmthout | 4,118.78 mi (6,628.54 km) |
| Mason to Kampenhout | 4,135.62 mi (6,655.64 km) |
| Mason to Kapelle-op-den-Bos | 4,126.17 mi (6,640.43 km) |
| Mason to Kapellen | 4,119.54 mi (6,629.75 km) |
| Mason to Kasterlee | 4,141.57 mi (6,665.22 km) |
| Mason to Keerbergen | 4,136.87 mi (6,657.66 km) |
| Mason to Kinrooi | 4,175.36 mi (6,719.59 km) |
| Mason to Knokke-Heist | 4,074.30 mi (6,556.96 km) |
| Mason to Koekelare | 4,069.83 mi (6,549.75 km) |
| Mason to Koekelberg | 4,129.50 mi (6,645.78 km) |
| Mason to Koksijde | 4,056.61 mi (6,528.48 km) |
| Mason to Kontich | 4,125.82 mi (6,639.86 km) |
| Mason to Kortemark | 4,074.19 mi (6,556.77 km) |
