| Date | IP Address |
| 2017-12-01 | 96.17.196.224 (ClassC) |
| 2017-12-28 | 63.227.135.48 (ClassC) |
| 2017-12-28 | 63.238.216.72 (ClassC) |
| 2018-03-20 | 104.91.166.65 (ClassC) |
| 2018-10-15 | 23.215.104.89 (ClassC) |
| 2019-02-04 | 23.3.96.123 (ClassC) |
| 2026-01-20 | 183.181.99.29 (ClassC) |
| Date | Domain | IP |
| www2.teitanso.or.jp | 2025-09-22 | 183.176.221.240 |
| www.teitanso.or.jp | 2026-01-20 | 183.181.99.29 |