| Date | IP Address |
| 2018-12-25 | 34.200.106.22 (ClassC) |
| 2020-01-24 | 107.23.18.228 (ClassC) |
| 2020-04-11 | 54.84.173.106 (ClassC) |
| 2020-05-17 | 35.175.4.16 (ClassC) |
| 2020-07-16 | 54.227.147.28 (ClassC) |
| 2021-11-29 | 52.23.24.89 (ClassC) |
| 2022-01-29 | 3.225.74.242 (ClassC) |
| 2022-03-30 | 204.236.218.31 (ClassC) |
| 2024-08-31 | 50.18.250.55 (ClassC) |
| 2024-09-05 | 3.124.73.190 (ClassC) |
| 2024-09-18 | 3.101.49.108 (ClassC) |
| 2024-10-05 | 13.57.53.250 (ClassC) |
| 2024-10-18 | 184.73.186.24 (ClassC) |
| 2024-12-06 | 52.52.14.201 (ClassC) |
| 2024-12-11 | 34.232.252.169 (ClassC) |
| 2024-12-18 | 13.52.116.170 (ClassC) |
| 2024-12-25 | 52.52.235.94 (ClassC) |
| 2025-02-17 | 52.8.71.24 (ClassC) |
| 2025-04-05 | 54.153.77.178 (ClassC) |
| 2025-04-18 | 52.8.246.251 (ClassC) |
| 2025-08-07 | 54.193.20.61 (ClassC) |
| 2025-09-03 | 54.177.186.41 (ClassC) |
| 2026-01-01 | 52.53.61.56 (ClassC) |
| 2026-02-15 | 54.183.187.40 (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 |