| 1977-07-01 | 廃止 | 70427 | Purgerot-Arbecey |
| 1977-07-01 | 復活 | 70427 → 70025 | Purgerot-Arbecey → Arbecey |
| 1977-07-01 | 復活 | 70427 | Purgerot-Arbecey → Purgerot |
| 1972-12-31 | 廃止 | 70427 | Purgerot |
| 1972-12-31 | 連合合併 | 70025 → 70427 | Arbecey → Purgerot-Arbecey |
| 1972-12-31 | 連合合併 | 70427 | Purgerot → Purgerot-Arbecey |
| 1943-01-01 | 新設 | 70427 | Purgerot |