| Country | France (FR) |
| UN/LOCODE | MSY |
| Name | Massy |
| Name Without Diacritics | Massy |
| Region | 91 |
| Function Code | --3----- |
| Function | Road |
| Status Code | RL (Recognised Location) |
| Date | 1901 |
| Timezone | Europe/Paris |
| Location (UN Format) | 4844N 00217E |
| Latitude Longitude | 49.6898, 1.4043 |