| Date | IP Address |
| 2019-01-09 | 23.220.96.202 (ClassC) |
| 2019-01-09 | 23.220.96.177 (ClassC) |
| 2019-05-29 | 23.43.164.82 (ClassC) |
| 2019-05-30 | 23.219.36.96 (ClassC) |
| 2019-05-31 | 23.56.175.154 (ClassC) |
| 2019-08-07 | 184.28.156.41 (ClassC) |
| 2019-08-20 | 104.104.137.64 (ClassC) |
| 2019-10-16 | 23.220.96.42 (ClassC) |
| 2019-12-31 | 104.114.79.49 (ClassC) |
| 2020-01-10 | 104.124.60.27 (ClassC) |
| 2020-03-05 | 104.124.60.99 (ClassC) |
| 2020-03-23 | 104.91.167.56 (ClassC) |
| 2020-04-05 | 23.35.71.176 (ClassC) |
| 2020-09-13 | 23.55.63.58 (ClassC) |
| 2021-02-21 | 172.232.13.9 (ClassC) |
| 2021-02-24 | 23.48.210.107 (ClassC) |
| 2021-05-20 | 23.48.105.196 (ClassC) |
| 2021-09-13 | 23.66.127.168 (ClassC) |
| 2021-12-27 | 23.52.42.207 (ClassC) |
| 2022-04-29 | 23.64.114.23 (ClassC) |
| 2022-07-19 | 104.76.210.212 (ClassC) |
| 2023-07-30 | 184.30.31.115 (ClassC) |
| 2024-02-19 | 23.46.17.15 (ClassC) |
| 2024-03-12 | 184.28.93.73 (ClassC) |
| 2024-06-03 | 23.46.17.24 (ClassC) |
| 2024-10-04 | 13.107.246.70 (ClassC) |
| 2025-08-04 | 13.107.253.70 (ClassC) |
| Date | Domain | IP |
| l.mail.centr.com | 2024-12-23 | 13.107.253.70 |
| image.email.centr.com | 2024-03-12 | 92.123.202.29 |
| click.email.centr.com | 2025-07-30 | 13.111.18.12 |
| cdn.centr.com | 2024-02-19 | 23.46.17.15 |
| web-cdn.centr.com | 2024-03-09 | 23.46.17.35 |
| cast-cdn.centr.com | 2025-07-03 | 13.107.253.70 |
| www.centr.com | 2023-11-02 | 104.96.163.211 |