Netherlands Calling Codes
Country Code +31
| City Codes | |
| Amsterdam | 20 |
| Arnhem | 26 |
| de Meern | 30 |
| Den Bosch | 73 |
| Deventer | 570 |
| Eindhoven | 40 |
| Groningen | 50 |
| Haarlem | 23 |
| Heemstede | 23 |
| Hillegersberg | 10 |
| Hilversum | 35 |
| Hoensbroek | 45 |
| Hoogkerk | 50 |
| Hoogvliet | 10 |
| Houten | 30 |
| IJsselstein | 30 |
| Leiden | 71 |
| Loosduinen Loosduinen is part of Den Haag | 70 |
| Nieuwegein | 30 |
| Nijmegen | 24 |
| Oud Zuilen Oud Zuilen is part of Utrecht | 30 |
| Rotterdam | 10 |
| The Hague (Den Haag) | 70 |
| Utrecht | 30 |
| Vught | 73 |
| Zeist | 30 |
| Mobile Phone | |
| Ben Netherlands | GSM1800 |
| Dutchtone | GSM 1800 |
| Telfort | GSM 1800 |
| KPN | GSM 900/1800 |
| Libertel (Vodafone) | GSM 900/1800 |
