รายชื่อภูมิภาค
- 1901 DA - Castricum, Castricum, Noord-Holland
- 1901 DB - Castricum, Castricum, Noord-Holland
- 1901 DC - Castricum, Castricum, Noord-Holland
- 1901 DD - Castricum, Castricum, Noord-Holland
- 1901 DE - Castricum, Castricum, Noord-Holland
- 1901 DG - Castricum, Castricum, Noord-Holland
- 1901 DH - Castricum, Castricum, Noord-Holland
- 1901 DJ - Castricum, Castricum, Noord-Holland
- 1901 DK - Castricum, Castricum, Noord-Holland
- 1901 DL - Castricum, Castricum, Noord-Holland
- 1901 DM - Castricum, Castricum, Noord-Holland
- 1901 DN - Castricum, Castricum, Noord-Holland
- 1901 DP - Castricum, Castricum, Noord-Holland
- 1901 DR - Castricum, Castricum, Noord-Holland
- 1901 DS - Castricum, Castricum, Noord-Holland
- 1901 DT - Castricum, Castricum, Noord-Holland
- 1901 DV - Castricum, Castricum, Noord-Holland
- 1901 DW - Castricum, Castricum, Noord-Holland
- 1901 DX - Castricum, Castricum, Noord-Holland
- 1901 DZ - Castricum, Castricum, Noord-Holland