| Date | IP Address |
| 2020-12-14 | 104.28.28.134 (ClassC) |
| 2024-09-06 | 104.21.20.113 (ClassC) |
| 2024-10-30 | 172.67.192.95 (ClassC) |
| Date | Domain | IP |
| cpanel.pdf-libros.net | 2024-09-14 | 172.67.192.95 |
| autodiscover.pdf-libros.net | 2024-09-06 | 104.21.20.113 |
| cpcalendars.pdf-libros.net | 2024-09-07 | 172.67.192.95 |
| cpcontacts.pdf-libros.net | 2024-09-08 | 104.21.20.113 |