| Date | IP Address |
| 2020-01-24 | 107.23.18.228 (ClassC) |
| 2024-08-31 | 50.18.250.55 (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) |
| 2024-12-18 | 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) |
| Date | Domain | IP |
| ftp.pieris.com | 2025-05-09 | 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 |