Список региона
- 1901 SP - Castricum, Castricum, Noord-Holland
- 1901 SR - Castricum, Castricum, Noord-Holland
- 1901 ST - Castricum, Castricum, Noord-Holland
- 1901 SV - Castricum, Castricum, Noord-Holland
- 1901 SW - Castricum, Castricum, Noord-Holland
- 1901 SX - Castricum, Castricum, Noord-Holland
- 1901 SZ - Castricum, Castricum, Noord-Holland
- 1901 TA - Castricum, Castricum, Noord-Holland
- 1901 TB - Castricum, Castricum, Noord-Holland
- 1901 TC - Castricum, Castricum, Noord-Holland
- 1901 TD - Castricum, Castricum, Noord-Holland
- 1901 TE - Castricum, Castricum, Noord-Holland
- 1901 TG - Castricum, Castricum, Noord-Holland
- 1901 TH - Castricum, Castricum, Noord-Holland
- 1901 TJ - Castricum, Castricum, Noord-Holland
- 1901 TK - Castricum, Castricum, Noord-Holland
- 1901 TL - Castricum, Castricum, Noord-Holland
- 1901 TM - Castricum, Castricum, Noord-Holland
- 1901 TN - Castricum, Castricum, Noord-Holland
- 1901 TP - Castricum, Castricum, Noord-Holland