| Country | Poland (PL) |
| UN/LOCODE | SIW |
| Name | SianÛw |
| Name Without Diacritics | Sianow |
| Function Code | --3----- |
| Function | Road |
| Status Code | RL (Recognised Location) |
| Date | 212 |
| Timezone | Europe/Warsaw |
| Location (UN Format) | 5413N 01617E |
| Latitude Longitude | 54.2265, 16.2913 |