| Country | São Tomé and Príncipe (ST) |
| UN/LOCODE | RIA |
| Name | Ribeira Afonso |
| Name Without Diacritics | Ribeira Afonso |
| Function Code | ----5--- |
| Function | Postal Exchange Office |
| Status Code | AI (Code Adopted By International Organization) |
| Date | 9805 |
| Timezone | Africa/Sao_Tome |
| Latitude Longitude | 0.2, 6.7167 |