Danh sách vùng
- 9218 VC - Opeinde, Smallingerland, Friesland
- 9218 VD - Opeinde, Smallingerland, Friesland
- 9218 VE - Opeinde, Smallingerland, Friesland
- 9218 VG - Opeinde, Smallingerland, Friesland
- 9218 VH - Opeinde, Smallingerland, Friesland
- 9218 XA - Opeinde, Smallingerland, Friesland
- 9218 XB - Opeinde, Smallingerland, Friesland
- 9218 XC - Opeinde, Smallingerland, Friesland