| Domain | Date |
| 2.opensuse.pool.ntp.org | 2025-04-10 |
| time2.peer1.com | 2025-01-19 |
| ntp.ncom.com | 2024-07-22 |
| 1.ntp.connect.fluke.com | 2024-06-09 |
| 0.rhel.pool.ntp.org | 2024-04-28 |
| time4.t1n1wall.com | 2024-03-03 |
| 0.viking.pool.ntp.org | 2024-01-09 |
| 0.arch.pool.ntp.org | 2023-10-28 |
| 3.centos.pool.ntp.org | 2022-08-31 |