| Date | IP Address |
| 2020-11-05 | 52.85.224.107 (ClassC) |
| 2020-11-05 | 52.85.224.127 (ClassC) |
| 2020-11-05 | 52.85.224.34 (ClassC) |
| 2020-11-05 | 52.85.224.37 (ClassC) |
| 2021-09-08 | 13.227.39.21 (ClassC) |
| 2021-09-08 | 13.227.39.73 (ClassC) |
| 2024-10-30 | 172.67.178.72 (ClassC) |
| 2025-01-26 | 104.21.31.164 (ClassC) |
| Date | Domain | IP |
| 2020.angstromctf.com | 2024-06-25 | 172.67.178.72 |
| 2021.angstromctf.com | 2024-09-30 | 172.67.178.72 |
| 2017.angstromctf.com | 2024-10-23 | 172.67.178.72 |
| 2018.angstromctf.com | 2024-10-30 | 172.67.178.72 |
| 2019.angstromctf.com | 2024-11-15 | 104.21.31.164 |