| Date | IP Address |
| 2020-08-29 | 18.139.230.147 (ClassC) |
| 2023-09-19 | 52.76.121.43 (ClassC) |
| 2023-10-06 | 18.139.154.203 (ClassC) |
| 2025-08-08 | 52.220.57.27 (ClassC) |
| 2025-09-01 | 52.77.100.66 (ClassC) |
| 2026-02-23 | 13.251.137.142 (ClassC) |
| Date | Domain | IP |
| whyzehrcentral.whyze.com.sg | 2026-02-09 | 47.131.68.22 |
| hr.whyze.com.sg | 2025-05-22 | 175.41.148.245 |
| whyzehr.whyze.com.sg | 2025-08-08 | 52.220.57.27 |