| Date | IP Address |
| 2025-08-12 | 157.205.232.93 (ClassC) |
| Date | Domain | IP |
| ns4.otsuka-shokai.co.jp | 2025-08-06 | 111.87.26.249 |
| cc.otsuka-shokai.co.jp | 2025-08-12 | 157.205.232.93 |
| sync.otsuka-shokai.co.jp | 2025-05-26 | 157.205.235.103 |
| mypage.otsuka-shokai.co.jp | 2025-06-30 | 157.205.235.109 |
| tlk-api.mypage.otsuka-shokai.co.jp | 2025-05-11 | 20.210.13.251 |
| search.otsuka-shokai.co.jp | 2025-06-20 | 157.205.235.118 |
| cai.otsuka-shokai.co.jp | 2025-08-08 | 157.205.235.120 |
| www.oshiharai.otsuka-shokai.co.jp | 2025-06-15 | 157.205.232.49 |
| jinzai.otsuka-shokai.co.jp | 2025-02-27 | 204.246.191.29 |
| oi.otsuka-shokai.co.jp | 2025-07-20 | 157.205.235.112 |
| rtbcn.otsuka-shokai.co.jp | 2025-06-01 | 157.205.235.116 |
| sp.otsuka-shokai.co.jp | 2025-06-15 | 157.205.235.115 |
| www.otsuka-shokai.co.jp | 2025-06-12 | 157.205.235.113 |