| Date | IP Address |
| 2019-09-06 | 23.185.0.1 (ClassC) |
| 2024-08-02 | 3.216.221.221 (ClassC) |
| 2024-09-26 | 3.210.164.171 (ClassC) |
| 2025-01-12 | 52.21.183.73 (ClassC) |
| 2025-05-21 | 35.169.147.163 (ClassC) |
| 2025-06-18 | 54.237.138.120 (ClassC) |
| 2025-06-30 | 44.194.209.167 (ClassC) |
| 2025-08-22 | 34.232.165.69 (ClassC) |
| 2025-09-09 | 44.209.122.52 (ClassC) |
| 2026-01-17 | 3.212.247.181 (ClassC) |
| Date | Domain | IP |
| 65-66.stcusa.com | 2024-08-02 | 3.216.221.221 |
| experience.stcusa.com | 2025-05-17 | 23.44.205.136 |
| course.stcusa.com | 2025-09-02 | 104.18.6.183 |
| stage-course.stcusa.com | 2025-09-14 | 104.18.7.183 |
| test-course.stcusa.com | 2025-11-15 | 104.18.6.183 |
| dev-course.stcusa.com | 2025-11-12 | 104.18.6.183 |
| studentapi.stcusa.com | 2024-11-22 | 18.161.6.52 |
| dark.stcusa.com | 2025-10-27 | 104.18.7.183 |
| learn.stcusa.com | 2025-11-14 | 104.18.6.183 |
| stage-learn.stcusa.com | 2025-10-10 | 104.18.7.183 |
| test-learn.stcusa.com | 2025-09-23 | 104.18.6.183 |
| dev-learn.stcusa.com | 2025-09-19 | 104.18.6.183 |
| test-partner.stcusa.com | 2025-10-29 | 104.18.6.183 |
| dev-partner.stcusa.com | 2025-11-12 | 104.18.6.183 |
| api-ms.stcusa.com | 2024-06-16 | 104.18.20.199 |
| checkout.stcusa.com | 2025-12-12 | 104.18.6.183 |
| test-checkout.stcusa.com | 2025-11-12 | 104.18.7.183 |
| www.stcusa.com | 2025-12-13 | 104.18.6.183 |
| my.stcusa.com | 2023-12-20 | 13.227.74.60 |