| Date | IP Address | 
| 2021-08-02 | 65.8.55.32 (ClassC) | 
| 2021-08-02 | 65.8.55.41 (ClassC) | 
| 2021-08-03 | 65.8.48.99 (ClassC) | 
| 2021-08-04 | 52.85.224.81 (ClassC) | 
| 2021-08-04 | 54.230.17.12 (ClassC) | 
| 2025-01-09 | 13.224.14.30 (ClassC) | 
| 2025-04-15 | 99.84.66.19 (ClassC) | 
| 2025-06-19 | 99.84.66.27 (ClassC) | 
| 2025-07-03 | 99.84.66.46 (ClassC) | 
| 2025-11-04 | 3.169.173.72 (ClassC) | 
| Date | Domain | IP | 
| app1.madison.upwork.schemaware.io | 2024-06-14 | 99.84.66.97 | 
| app2.madison.upwork.schemaware.io | 2024-05-10 | 204.246.191.49 | 
| auth.madison.upwork.schemaware.io | 2025-01-09 | 13.224.14.30 | 
| app.madison.upwork.schemaware.io | 2025-02-16 | 18.161.6.100 |