| Domain | Date |
| 1.formlabs.pool.ntp.org | 2022-05-30 |
| 3.datadog.pool.ntp.org | 2022-05-14 |
| 1.coreos.pool.ntp.org | 2022-05-06 |
| 0.amazon.pool.ntp.org | 2022-01-20 |
| 0.debian.pool.ntp.org | 2021-12-18 |
| t1.hshh.org | 2021-12-09 |
| 0.pfsense.pool.ntp.org | 2021-05-27 |
| 3.pool.ntp.org | 2021-05-25 |
| 0.rhel.pool.ntp.org | 2021-05-20 |
| 2.boot2docker.pool.ntp.org | 2021-05-06 |
| 3.debian.pool.ntp.org | 2021-05-04 |
| 0.arch.pool.ntp.org | 2021-05-01 |
| 0.ubnt.pool.ntp.org | 2021-04-30 |
| 3.centos.pool.ntp.org | 2021-04-28 |