| Domain | Date |
| 0.rhel.pool.ntp.org | 2020-08-23 |
| 2.aerohive.pool.ntp.org | 2020-08-20 |
| 0.arch.pool.ntp.org | 2020-08-17 |
| 2.sophos.pool.ntp.org | 2020-08-12 |
| 3.debian.pool.ntp.org | 2020-01-01 |
| 0.amazon.pool.ntp.org | 2019-12-09 |
| 3.us.pool.ntp.org | 2019-10-27 |
| t1.hshh.org | 2019-10-18 |
| time.musixmatch.com | 2019-10-18 |
| 0.nettime.pool.ntp.org | 2019-09-09 |
| 1.nettime.pool.ntp.org | 2019-09-09 |
| 0.us.pool.ntp.org | 2019-09-03 |
| 3.pool.ntp.org | 2019-08-06 |
| 1.debian.pool.ntp.org | 2019-07-27 |
| 1.rhel.pool.ntp.org | 2019-07-24 |
| 0.fedora.pool.ntp.org | 2019-07-22 |
| 0.centos.pool.ntp.org | 2019-07-16 |
| 2.pool.ntp.org | 2019-07-14 |
| 0.parity.pool.ntp.org | 2019-07-08 |
| pool.ntp.org | 2019-05-26 |
| 2.android.pool.ntp.org | 2019-05-23 |
| 1.pool.ntp.org | 2019-05-16 |
| 0.debian.pool.ntp.org | 2019-05-09 |
| 0.pool.ntp.org | 2019-05-06 |