About postal code 6400
The postal code 6400 routes mail to Sønderborg in the South Denmark region of Denmark. Use it as the postal segment of any address in this area, and confirm unusual addresses with the local postal operator.
Denmark · Postal code
6400 - Sønderborg
Postal code 6400 is Sønderborg in South Denmark, Denmark.
| Postal code | 6400 |
| Place | Sønderborg |
| Region | South Denmark |
| District | Sønderborg Kommune |
| Country | Denmark (DK) |
| Coordinates | 54.9213, 9.7764 (map) |