Regiunea lista
- 1901 WT - Castricum, Castricum, Noord-Holland
- 1901 WV - Castricum, Castricum, Noord-Holland
- 1901 WX - Castricum, Castricum, Noord-Holland
- 1901 WZ - Castricum, Castricum, Noord-Holland
- 1901 XA - Castricum, Castricum, Noord-Holland
- 1901 XB - Castricum, Castricum, Noord-Holland
- 1901 XC - Castricum, Castricum, Noord-Holland
- 1901 XD - Castricum, Castricum, Noord-Holland
- 1901 XE - Castricum, Castricum, Noord-Holland
- 1901 XG - Castricum, Castricum, Noord-Holland
- 1901 XH - Castricum, Castricum, Noord-Holland
- 1901 XJ - Castricum, Castricum, Noord-Holland
- 1901 XK - Castricum, Castricum, Noord-Holland
- 1901 XL - Castricum, Castricum, Noord-Holland
- 1901 XM - Castricum, Castricum, Noord-Holland
- 1901 XN - Castricum, Castricum, Noord-Holland
- 1901 XP - Castricum, Castricum, Noord-Holland
- 1901 XR - Castricum, Castricum, Noord-Holland
- 1901 XS - Castricum, Castricum, Noord-Holland
- 1901 XT - Castricum, Castricum, Noord-Holland