The Area Codes of Netherlands:
| City/Town or Region | Area code | |
|---|---|---|
| 1. | Dedemsvaart | 0523 (+31523) |
| 2. | Delft | 015 (+3115) |
| 3. | Den Haag | 070 (+3170) |
| 4. | Den Helder | 0223 (+31223) |
| 5. | Deurne | 0493 (+31493) |
| 6. | Deventer | 0570 (+31570) |
| 7. | Dieren | 0313 (+31313) |
| 8. | Doetinchem | 0314 (+31314) |
| 9. | Dokkum | 0519 (+31519) |
| 10. | Doorn | 0343 (+31343) |
| 11. | Dordrecht | 078 (+3178) |
| 12. | Drachten | 0512 (+31512) |
| 13. | Dronten | 0321 (+31321) |
| 14. | Druten | 0487 (+31487) |