| Domain | Date |
| 0.amazon.pool.ntp.org | 2023-03-20 |
| 0.ubnt.pool.ntp.org | 2022-08-01 |
| 0.debian.pool.ntp.org | 2022-04-19 |
| 3.debian.pool.ntp.org | 2021-01-10 |
| t1.hshh.org | 2020-07-30 |
| 0.pool.ntp.org | 2020-06-15 |
| 2.pool.ntp.org | 2020-05-19 |
| 3.europe.pool.ntp.org | 2019-10-14 |
| 2.europe.pool.ntp.org | 2019-08-22 |
| 0.rhel.pool.ntp.org | 2019-07-24 |
| 1.europe.pool.ntp.org | 2019-07-20 |
| 3.pool.ntp.org | 2019-07-15 |
| europe.pool.ntp.org | 2019-05-08 |
| 1.pool.ntp.org | 2019-05-03 |
| 1.debian.pool.ntp.org | 2018-10-15 |
| 2.android.pool.ntp.org | 2018-10-13 |
| pool.ntp.org | 2018-10-02 |
| 0.europe.pool.ntp.org | 2018-08-26 |