Other
| Sudvision | No. | Description |
|---|---|---|
| ISO 3166-2:PT | 20 | 18 Districts and two Autonomous regions of Portugal |
| Constituencies | 20 | Assembly of the Republic: 18 Districts and two Autonomous regions of Portugal |
| Código Postal | 10 | Postal code zones (first digit) |
| Código Telefónica | 51 | Telephone area codes |
Read more about this topic: Administrative Divisions Of Portugal