| Date | IP Address |
| 2025-10-28 | 216.117.191.119 (ClassC) |
| Date | Domain | IP |
| webdisk.dobereiner.com | 2020-06-01 | 216.117.138.48 |
| cpanel.dobereiner.com | 2025-10-25 | 216.117.191.119 |
| mail.dobereiner.com | 2025-09-13 | 216.117.191.119 |
| webmail.dobereiner.com | 2025-10-28 | 216.117.191.119 |
| autodiscover.dobereiner.com | 2025-07-12 | 216.117.191.119 |
| cpcalendars.dobereiner.com | 2025-07-02 | 216.117.191.119 |
| cpcontacts.dobereiner.com | 2025-09-29 | 216.117.191.119 |
| www.dobereiner.com | 2025-07-22 | 216.117.191.119 |