| Date | IP Address |
| 2016-06-15 | 52.7.79.183 (ClassC) |
| 2017-06-06 | 54.88.3.199 (ClassC) |
| 2019-04-27 | 34.192.54.34 (ClassC) |
| 2020-07-18 | 54.227.147.28 (ClassC) |
| 2021-09-09 | 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) |
| 2024-04-17 | 52.52.205.21 (ClassC) |
| 2024-10-06 | 184.169.182.85 (ClassC) |
| 2024-12-04 | 13.52.116.170 (ClassC) |
| 2025-03-02 | 54.177.114.92 (ClassC) |
| 2025-03-21 | 54.183.53.240 (ClassC) |
| 2025-04-19 | 52.9.88.22 (ClassC) |
| 2025-04-27 | 52.9.207.237 (ClassC) |
| 2025-05-15 | 52.52.229.84 (ClassC) |
| 2025-07-15 | 54.176.140.168 (ClassC) |
| 2025-09-03 | 52.52.12.245 (ClassC) |
| 2026-01-31 | 52.53.80.136 (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 |