| 2012-10-01 | 連合合併→単純合併 | 22190 | Pleslin-Trigavou |
| 2012-10-01 | 連合合併→単純合併 | 22382 → 22190 | Trigavou → Pleslin-Trigavou |
| 1973-01-01 | 廃止 | 22190 | Pleslin |
| 1973-01-01 | 連合合併 | 22190 | Pleslin → Pleslin-Trigavou |
| 1973-01-01 | 連合合併 | 22382 → 22190 | Trigavou → Pleslin-Trigavou |
| 1943-01-01 | 新設 | 22190 | Pleslin |