looks like a few bitprojects IPs made it into the Bitcoin Core fixed seeds. 
EDIT: not very sure about whether bitprojects started in 2024. edit: ok thanks @b10c for pointing out this - bitprojects started in mid-jul 2024.
| seed update | bitprojects IPs | shipped in |
|---|---|---|
| 2024-08-27 | 203.11.72.118, 203.11.72.199 | v28.0, v28.1, v28.2, v28.3, v28.4 |
| 2025-03-06 | 103.246.186.143, 103.246.186.234 | v29.0, v29.1, v29.2, v29.3, v29.4 |
| 2025-09-02 | 123.100.246.36, 203.11.72.173 | v30.0, v30.1, v30.2, v30.3 |
| 2026-02-25 | 66.163.223.67, 103.246.186.167, 203.11.72.53, 203.11.72.174 | v31.0, v31.1 |
| 2026-09-08 | none | v32.0 (rc1–rc3), master |