Lista regionu
- 1901 NM - Castricum, Castricum, Noord-Holland
- 1901 NN - Castricum, Castricum, Noord-Holland
- 1901 NP - Castricum, Castricum, Noord-Holland
- 1901 NR - Castricum, Castricum, Noord-Holland
- 1901 NS - Castricum, Castricum, Noord-Holland
- 1901 NT - Castricum, Castricum, Noord-Holland
- 1901 NV - Castricum, Castricum, Noord-Holland
- 1901 NW - Castricum, Castricum, Noord-Holland
- 1901 NX - Castricum, Castricum, Noord-Holland
- 1901 NZ - Castricum, Castricum, Noord-Holland
- 1901 PA - Castricum, Castricum, Noord-Holland
- 1901 PB - Castricum, Castricum, Noord-Holland
- 1901 PC - Castricum, Castricum, Noord-Holland
- 1901 PD - Castricum, Castricum, Noord-Holland
- 1901 PE - Castricum, Castricum, Noord-Holland
- 1901 PG - Castricum, Castricum, Noord-Holland
- 1901 PH - Castricum, Castricum, Noord-Holland
- 1901 PJ - Castricum, Castricum, Noord-Holland
- 1901 PK - Castricum, Castricum, Noord-Holland
- 1901 PL - Castricum, Castricum, Noord-Holland