| Date | IP Address |
| 2022-03-17 | 54.77.37.21 (ClassC) |
| 2023-10-31 | 34.252.59.3 (ClassC) |
| 2024-06-17 | 63.33.158.0 (ClassC) |
| 2024-07-02 | 52.51.169.209 (ClassC) |
| 2024-10-21 | 52.50.185.3 (ClassC) |
| 2025-02-09 | 52.51.31.199 (ClassC) |
| 2025-04-25 | 99.80.162.0 (ClassC) |
| 2025-07-08 | 54.220.234.127 (ClassC) |
| 2025-08-02 | 34.253.115.42 (ClassC) |
| 2025-08-04 | 54.154.23.104 (ClassC) |
| 2025-08-22 | 34.243.166.155 (ClassC) |
| 2025-09-01 | 54.171.186.148 (ClassC) |
| 2025-10-25 | 54.76.78.225 (ClassC) |
| 2025-12-21 | 52.210.83.192 (ClassC) |
| 2026-02-14 | 99.81.109.81 (ClassC) |
| Date | Domain | IP |
| www.zoosk-mailing.com | 2023-12-01 | 52.51.216.213 |
| staging-www.zoosk-mailing.com | 2025-02-09 | 52.51.31.199 |