| Domain | Date |
| 0.centos.pool.ntp.org | 2021-02-07 |
| 0.ubnt.pool.ntp.org | 2021-02-04 |
| 1.openwrt.pool.ntp.org | 2021-01-09 |
| 3.debian.pool.ntp.org | 2020-12-09 |
| 1.pool.ntp.org | 2020-10-18 |
| asia.pool.ntp.org | 2019-12-11 |
| 0.asia.pool.ntp.org | 2019-08-13 |
| 0.sg.pool.ntp.org | 2019-05-18 |
| 3.pool.ntp.org | 2018-11-19 |
| 1.debian.pool.ntp.org | 2017-11-14 |
| pool.ntp.org | 2017-11-10 |
| 0.pool.ntp.org | 2017-10-22 |
| t3.hshh.org | 2017-10-22 |
| 0.debian.pool.ntp.org | 2017-10-19 |
| 2.pool.ntp.org | 2017-10-11 |
| 2.android.pool.ntp.org | 2017-10-06 |
| 2.centos.pool.ntp.org | 2017-09-22 |