| Domain | Date |
| 3.datadog.pool.ntp.org | 2021-10-21 |
| 0.debian.pool.ntp.org | 2021-01-11 |
| 0.pfsense.pool.ntp.org | 2021-01-10 |
| 3.ubuntu.pool.ntp.org | 2020-11-27 |
| 3.debian.pool.ntp.org | 2020-11-17 |
| 3.pool.ntp.org | 2020-03-03 |
| asia.pool.ntp.org | 2019-12-07 |
| 1.pool.ntp.org | 2019-11-20 |
| 0.pool.ntp.org | 2019-10-26 |
| 2.pool.ntp.org | 2019-10-26 |
| 0.asia.pool.ntp.org | 2019-09-08 |
| 1.nettime.pool.ntp.org | 2019-08-21 |
| 0.cn.pool.ntp.org | 2019-07-20 |
| 2.android.pool.ntp.org | 2019-05-13 |
| pool.ntp.org | 2019-04-30 |
| 0.nettime.pool.ntp.org | 2019-04-06 |