| Date | IP Address |
| 2026-02-02 | 67.20.123.46 (ClassC) |
| Date | Domain | IP |
| webdisk.onsenjapan.net | 2025-08-20 | 67.20.123.46 |
| mail.onsenjapan.net | 2026-02-02 | 67.20.123.46 |
| www.mail.onsenjapan.net | 2025-07-25 | 67.20.123.46 |
| webmail.onsenjapan.net | 2025-09-17 | 67.20.123.46 |
| autodiscover.onsenjapan.net | 2025-08-09 | 67.20.123.46 |
| www.onsenjapan.net | 2025-10-08 | 67.20.123.46 |