| Date | IP Address |
| 2023-08-15 | 35.169.168.134 (ClassC) |
| 2024-08-20 | 52.71.55.76 (ClassC) |
| 2024-09-13 | 54.208.195.20 (ClassC) |
| 2024-12-27 | 52.4.169.249 (ClassC) |
| 2025-01-15 | 44.215.170.250 (ClassC) |
| 2025-01-21 | 3.82.29.180 (ClassC) |
| 2025-02-04 | 44.215.58.241 (ClassC) |
| Date | Domain | IP |
| agent-pos-na1.fourth.com | 2023-08-15 | 35.169.168.134 |
| gateway.analytics.na1.fourth.com | 2024-01-31 | 40.79.87.138 |
| developer.fourth.com | 2020-02-27 | 3.125.161.174 |
| developers.fourth.com | 2024-08-17 | 151.101.22.191 |
| www.fourth.com | 2024-11-12 | 141.193.213.11 |