क्षेत्र सूची
- 1901 GA - Castricum, Castricum, Noord-Holland
- 1901 GB - Castricum, Castricum, Noord-Holland
- 1901 GC - Castricum, Castricum, Noord-Holland
- 1901 GD - Castricum, Castricum, Noord-Holland
- 1901 GE - Castricum, Castricum, Noord-Holland
- 1901 GG - Castricum, Castricum, Noord-Holland
- 1901 GH - Castricum, Castricum, Noord-Holland
- 1901 GJ - Castricum, Castricum, Noord-Holland
- 1901 GK - Castricum, Castricum, Noord-Holland
- 1901 GL - Castricum, Castricum, Noord-Holland
- 1901 GM - Castricum, Castricum, Noord-Holland
- 1901 GN - Castricum, Castricum, Noord-Holland
- 1901 GP - Castricum, Castricum, Noord-Holland
- 1901 GR - Castricum, Castricum, Noord-Holland
- 1901 GS - Castricum, Castricum, Noord-Holland
- 1901 GT - Castricum, Castricum, Noord-Holland
- 1901 GV - Castricum, Castricum, Noord-Holland
- 1901 GW - Castricum, Castricum, Noord-Holland
- 1901 HA - Castricum, Castricum, Noord-Holland
- 1901 HB - Castricum, Castricum, Noord-Holland