| Date | IP Address |
| 2024-06-09 | 52.153.155.150 (ClassC) |
| 2025-02-04 | 166.70.33.123 (ClassC) |
| 2025-05-26 | 166.70.33.124 (ClassC) |
| 2025-08-14 | 166.70.33.125 (ClassC) |
| Date | Domain | IP |
| explore.readinghorizons.com | 2025-05-15 | 166.70.163.121 |
| accelerate.readinghorizons.com | 2025-11-02 | 166.70.163.118 |
| collective.readinghorizons.com | 2025-06-15 | 162.159.138.52 |
| marketing.readinghorizons.com | 2026-01-28 | 52.89.36.200 |
| admin-api.readinghorizons.com | 2025-05-15 | 166.70.163.121 |
| app-cdn.readinghorizons.com | 2024-06-09 | 52.153.155.150 |
| login.readinghorizons.com | 2025-08-07 | 166.70.163.121 |
| admin.readinghorizons.com | 2025-09-13 | 166.70.163.121 |
| app.readinghorizons.com | 2023-08-16 | 52.153.155.144 |
| wp.readinghorizons.com | 2025-05-31 | 166.70.163.114 |
| app-new.readinghorizons.com | 2023-08-26 | 52.182.223.147 |
| www.readinghorizons.com | 2025-10-10 | 166.70.163.114 |
| relay.readinghorizons.com | 2025-08-03 | 166.70.163.114 |