Seznam oblastí
- 6942 XX - Didam, Montferland, Gelderland
- 6942 XZ - Didam, Montferland, Gelderland
- 6942 ZA - Didam, Montferland, Gelderland
- 6942 ZB - Didam, Montferland, Gelderland
- 6942 ZC - Didam, Montferland, Gelderland
- 6942 ZD - Didam, Montferland, Gelderland
- 6942 ZE - Didam, Montferland, Gelderland
- 6942 ZG - Didam, Montferland, Gelderland
- 6942 ZH - Didam, Montferland, Gelderland
- 6942 ZJ - Didam, Montferland, Gelderland
- 6942 ZK - Didam, Montferland, Gelderland
- 6942 ZL - Didam, Montferland, Gelderland
- 6942 ZM - Didam, Montferland, Gelderland
- 6942 ZN - Didam, Montferland, Gelderland
- 6942 ZP - Didam, Montferland, Gelderland
- 6942 ZR - Didam, Montferland, Gelderland
- 6942 ZS - Didam, Montferland, Gelderland
- 6942 ZT - Didam, Montferland, Gelderland
- 6942 ZV - Didam, Montferland, Gelderland