| Date | IP Address |
| 2019-07-01 | 165.160.13.20 (ClassC) |
| 2019-07-01 | 165.160.15.20 (ClassC) |
| 2022-09-23 | 104.18.0.211 (ClassC) |
| 2022-09-23 | 104.18.1.211 (ClassC) |
| 2023-12-04 | 172.64.147.74 (ClassC) |
| 2024-02-22 | 104.18.40.182 (ClassC) |
| 2025-01-30 | 104.18.25.121 (ClassC) |
| 2026-02-09 | 104.18.24.121 (ClassC) |
| Date | Domain | IP |
| webmail.calder.ch | 2025-11-02 | 104.18.24.121 |
| www.calder.ch | 2025-04-29 | 104.18.25.121 |