| Date | IP Address |
| 2023-06-18 | 54.209.63.70 (ClassC) |
| 2023-08-27 | 34.193.206.152 (ClassC) |
| 2023-11-09 | 34.234.143.227 (ClassC) |
| 2024-02-03 | 23.20.149.239 (ClassC) |
| 2024-07-22 | 44.207.95.77 (ClassC) |
| 2024-10-05 | 184.72.77.78 (ClassC) |
| 2024-10-21 | 52.201.119.152 (ClassC) |
| 2024-11-01 | 54.159.39.108 (ClassC) |
| 2024-11-24 | 3.231.72.27 (ClassC) |
| 2024-12-08 | 3.225.59.97 (ClassC) |
| 2024-12-17 | 18.214.75.254 (ClassC) |
| 2024-12-26 | 34.200.81.175 (ClassC) |
| 2024-12-29 | 3.229.202.231 (ClassC) |
| 2025-01-04 | 54.204.5.2 (ClassC) |
| 2025-02-05 | 3.229.238.127 (ClassC) |
| 2025-05-06 | 3.214.241.145 (ClassC) |
| 2025-06-21 | 52.23.45.143 (ClassC) |
| 2025-07-17 | 52.21.243.5 (ClassC) |
| 2025-07-29 | 52.5.197.34 (ClassC) |
| 2025-08-10 | 34.206.26.104 (ClassC) |
| 2025-08-23 | 13.216.172.11 (ClassC) |
| 2025-09-01 | 23.23.2.51 (ClassC) |
| 2026-02-15 | 34.197.4.140 (ClassC) |
| Date | Domain | IP |
| www.houghtonmifflinbooks.com | 2024-11-24 | 3.231.72.27 |