| Date | IP Address |
| 2020-11-24 | 54.250.167.47 (ClassC) |
| 2025-08-30 | 13.115.9.183 (ClassC) |
| 2025-09-03 | 35.72.227.86 (ClassC) |
| 2025-11-14 | 3.113.172.185 (ClassC) |
| Date | Domain | IP |
| stg1.ats.hrtech.rikunabi.com | 2024-09-03 | 99.84.66.42 |
| api.stg01.develop.ats.hrtech.rikunabi.com | 2025-11-03 | 3.113.231.137 |
| cs.dev01.develop.ats.hrtech.rikunabi.com | 2024-12-24 | 52.195.54.109 |
| lp.develop.ats.hrtech.rikunabi.com | 2025-01-09 | 3.163.24.29 |
| sonartst.develop.ats.hrtech.rikunabi.com | 2025-08-30 | 13.115.9.183 |