Postal Code 18520 Boundary Map
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| Postal Code | 18520 |
| Postal Code Name | Wadi al - Dawasir |
| Province | Riyadh Province |
| Governorate | Wadi Ad Dawasir Governorate |
| Timezone | Saudi Arabia Standard Time (+03) |
| Adjacent Postal Codes | 18500 18501 18502 18503 18517 18528 18529 |