| Date | IP Address |
| 2021-07-30 | 3.225.136.215 (ClassC) |
| 2025-07-10 | 52.21.140.30 (ClassC) |
| 2025-07-25 | 54.83.126.47 (ClassC) |
| 2025-08-25 | 44.199.11.85 (ClassC) |
| 2025-09-06 | 34.206.40.121 (ClassC) |
| 2025-10-15 | 52.206.73.170 (ClassC) |
| 2025-11-22 | 18.233.176.146 (ClassC) |
| Date | Domain | IP |
| askpayroll.hhmi.org | 2025-09-12 | 206.241.3.59 |
| www.survey.hhmi.org | 2025-07-10 | 52.21.140.30 |