| Date | IP Address |
| 2021-03-29 | 52.84.129.125 (ClassC) |
| 2021-03-29 | 52.84.129.72 (ClassC) |
| 2021-04-05 | 65.8.49.32 (ClassC) |
| 2021-04-05 | 65.8.49.71 (ClassC) |
| 2021-04-05 | 65.8.49.76 (ClassC) |
| 2021-04-05 | 65.8.49.84 (ClassC) |
| 2021-09-07 | 13.227.39.126 (ClassC) |
| 2021-09-07 | 13.227.39.79 (ClassC) |
| 2021-09-07 | 13.227.39.90 (ClassC) |
| 2021-10-26 | 54.230.15.63 (ClassC) |
| 2021-10-26 | 54.230.15.82 (ClassC) |
| 2025-12-21 | 172.67.178.72 (ClassC) |
| 2026-01-16 | 104.21.31.164 (ClassC) |
| Date | Domain | IP |
| 2020.angstromctf.com | 2025-08-14 | 104.21.31.164 |
| 2021.angstromctf.com | 2025-12-21 | 172.67.178.72 |
| 2017.angstromctf.com | 2025-12-28 | 172.67.178.72 |
| 2018.angstromctf.com | 2025-12-21 | 104.21.31.164 |
| 2019.angstromctf.com | 2025-12-05 | 172.67.178.72 |