| Date | IP Address |
| 2021-09-17 | 3.221.176.71 (ClassC) |
| 2022-01-18 | 3.225.74.242 (ClassC) |
| 2023-01-22 | 3.92.153.22 (ClassC) |
| 2023-06-04 | 54.204.13.102 (ClassC) |
| 2023-09-27 | 54.145.232.231 (ClassC) |
| 2023-12-22 | 54.225.202.48 (ClassC) |
| 2024-07-19 | 44.209.57.54 (ClassC) |
| 2024-10-22 | 184.73.186.24 (ClassC) |
| 2024-12-13 | 34.232.252.169 (ClassC) |
| 2025-05-11 | 13.56.93.235 (ClassC) |
| 2025-05-24 | 54.183.70.164 (ClassC) |
| 2025-09-07 | 52.8.247.126 (ClassC) |
| 2025-09-25 | 54.151.89.89 (ClassC) |
| 2026-01-02 | 52.53.61.56 (ClassC) |
| 2026-01-30 | 52.53.59.161 (ClassC) |
| Date | Domain | IP |
| ftp.pieris.com | 2026-01-03 | 54.208.101.55 |
| ir.pieris.com | 2024-04-17 | 52.52.205.21 |
| careers.pieris.com | 2025-05-11 | 13.56.93.235 |
| www.pieris.com | 2024-08-31 | 50.18.250.55 |