Danh sách vùng
- 9223 KZ - Houtigehage, Smallingerland, Friesland
- 9223 LA - Houtigehage, Smallingerland, Friesland
- 9223 LB - Houtigehage, Smallingerland, Friesland
- 9223 LC - Houtigehage, Smallingerland, Friesland
- 9223 LD - Houtigehage, Smallingerland, Friesland
- 9223 LE - Houtigehage, Smallingerland, Friesland
- 9223 LG - Houtigehage, Smallingerland, Friesland
- 9223 LH - Houtigehage, Smallingerland, Friesland
- 9223 LJ - Houtigehage, Smallingerland, Friesland
- 9223 LK - Houtigehage, Smallingerland, Friesland
- 9223 LL - Houtigehage, Smallingerland, Friesland
- 9223 LM - Houtigehage, Smallingerland, Friesland
- 9223 LN - Houtigehage, Smallingerland, Friesland
- 9223 LP - Houtigehage, Smallingerland, Friesland
- 9223 LR - Houtigehage, Smallingerland, Friesland
- 9223 LS - Houtigehage, Smallingerland, Friesland
- 9223 NA - Houtigehage, Smallingerland, Friesland
- 9223 NB - Houtigehage, Smallingerland, Friesland
- 9223 NC - Houtigehage, Smallingerland, Friesland
- 9223 ND - Houtigehage, Smallingerland, Friesland