| Date | Type | Code | Name |
|---|---|---|---|
| 1986-09-01 | Deletion | 22204 | Ploëzal-Runan |
| 1986-09-01 | Restoration | 22204 | Ploëzal-Runan → Ploëzal |
| 1986-09-01 | Restoration | 22204 → 22269 | Ploëzal-Runan → Runan |
| 1973-04-01 | Deletion | 22204 | Ploëzal |
| 1973-04-01 | Association merger | 22204 | Ploëzal → Ploëzal-Runan |
| 1973-04-01 | Association merger | 22269 → 22204 | Runan → Ploëzal-Runan |
| 1943-01-01 | Creation | 22204 | Ploëzal |