Danh sách vùng
- 9221 LT - Rottevalle, Smallingerland, Friesland
- 9221 RA - Rottevalle, Smallingerland, Friesland
- 9221 SB - Rottevalle, Smallingerland, Friesland
- 9221 SC - Rottevalle, Smallingerland, Friesland
- 9221 SE - Rottevalle, Smallingerland, Friesland
- 9221 SG - Rottevalle, Smallingerland, Friesland
- 9221 SH - Rottevalle, Smallingerland, Friesland
- 9221 SJ - Rottevalle, Smallingerland, Friesland
- 9221 SK - Rottevalle, Smallingerland, Friesland
- 9221 SL - Rottevalle, Smallingerland, Friesland
- 9221 SM - Rottevalle, Smallingerland, Friesland
- 9221 SN - Rottevalle, Smallingerland, Friesland
- 9221 SP - Rottevalle, Smallingerland, Friesland
- 9221 SR - Rottevalle, Smallingerland, Friesland
- 9221 ST - Rottevalle, Smallingerland, Friesland
- 9221 SV - Rottevalle, Smallingerland, Friesland
- 9221 SW - Rottevalle, Smallingerland, Friesland
- 9221 SX - Rottevalle, Smallingerland, Friesland
- 9221 SZ - Rottevalle, Smallingerland, Friesland
- 9221 TA - Rottevalle, Smallingerland, Friesland