| Date | IP Address |
| 2024-11-11 | 104.21.90.33 (ClassC) |
| 2024-11-25 | 172.67.193.200 (ClassC) |
| 2025-01-23 | 104.21.80.1 (ClassC) |
| 2025-01-30 | 104.21.48.1 (ClassC) |
| 2025-03-04 | 104.21.32.1 (ClassC) |
| 2025-03-16 | 104.21.16.1 (ClassC) |
| 2025-03-24 | 104.21.64.1 (ClassC) |
| 2025-05-10 | 104.21.112.1 (ClassC) |
| 2025-10-17 | 104.18.7.66 (ClassC) |
| Date | Domain | IP |
| www.welchallyn.cn | 2024-10-05 | 104.21.90.33 |