| Date | IP Address |
| 2022-03-14 | 104.22.36.100 (ClassC) |
| 2025-10-17 | 172.66.163.35 (ClassC) |
| 2026-02-24 | 104.20.18.227 (ClassC) |
| Date | Domain | IP |
| subjectdatabase.rex3.com | 2025-10-17 | 104.20.18.227 |
| pdflink.rex3.com | 2025-10-16 | 172.66.163.35 |
| mail.rex3.com | 2013-11-11 | 64.135.71.198 |
| karenquinn.rex3.com | 2025-08-21 | 104.20.18.227 |
| devhelp.rex3.com | 2025-10-16 | 172.66.163.35 |
| toppslicensortemp.rex3.com | 2025-10-17 | 104.20.18.227 |
| toppscropster.rex3.com | 2025-08-27 | 104.20.18.227 |
| rexsolver.rex3.com | 2024-12-06 | 104.22.37.100 |
| toppslicensor.rex3.com | 2025-10-17 | 170.55.134.196 |
| toppsproofs.rex3.com | 2025-10-17 | 172.66.163.35 |
| toppsofs.rex3.com | 2025-10-17 | 170.55.134.198 |
| toppsvfs.rex3.com | 2025-09-14 | 172.66.163.35 |
| toppstaps.rex3.com | 2025-10-17 | 170.55.134.198 |
| tcftesthttps.rex3.com | 2025-09-20 | 104.20.18.227 |
| toppscollect.rex3.com | 2025-10-17 | 170.55.134.196 |
| utilitysp-fulfillment.rex3.com | 2025-10-17 | 172.66.163.35 |
| toppscardfactory.rex3.com | 2025-10-17 | 170.55.134.196 |