| Date | IP Address |
| 2022-05-05 | 52.55.55.143 (ClassC) |
| 2023-02-01 | 35.170.177.250 (ClassC) |
| 2024-06-24 | 54.86.40.92 (ClassC) |
| 2024-12-14 | 44.206.48.76 (ClassC) |
| 2025-01-01 | 3.223.60.186 (ClassC) |
| 2025-02-27 | 54.88.70.192 (ClassC) |
| 2025-05-02 | 23.20.244.23 (ClassC) |
| 2025-05-05 | 52.71.210.207 (ClassC) |
| 2025-05-11 | 54.160.36.228 (ClassC) |
| 2025-08-18 | 3.86.176.189 (ClassC) |
| 2025-09-06 | 52.23.48.181 (ClassC) |
| 2026-02-27 | 13.216.174.60 (ClassC) |
| Date | Domain | IP |
| cards-tool.letterland.com | 2023-08-16 | 35.174.42.209 |
| teacher.letterland.com | 2024-06-24 | 54.86.40.92 |
| www.letterland.com | 2025-05-26 | 172.67.163.178 |