| Date | IP Address |
| 2022-08-19 | 104.21.54.100 (ClassC) |
| 2024-04-19 | 104.21.2.96 (ClassC) |
| 2024-08-18 | 172.67.129.13 (ClassC) |
| 2025-05-03 | 104.21.48.1 (ClassC) |
| 2025-08-03 | 104.21.32.1 (ClassC) |
| Date | Domain | IP |
| cpanel.reszerver.com | 2024-09-04 | 104.21.2.96 |
| autodiscover.reszerver.com | 2024-04-19 | 104.21.2.96 |
| cpcalendars.reszerver.com | 2024-10-29 | 172.67.129.13 |
| cpcontacts.reszerver.com | 2024-04-12 | 172.67.129.13 |