| Date | IP Address |
| 2025-10-17 | 192.185.33.130 (ClassC) |
| Date | Domain | IP |
| cdpmm-public.librarypass.com | 2024-06-09 | 99.84.66.58 |
| ebibliomadrid.librarypass.com | 2024-05-27 | 23.21.13.165 |
| cdpmm-private.librarypass.com | 2025-02-27 | 18.161.6.109 |
| login.librarypass.com | 2025-06-06 | 18.235.17.55 |
| analytics.librarypass.com | 2024-05-27 | 3.217.233.58 |
| www.librarypass.com | 2025-10-17 | 192.185.33.130 |