| Date | IP Address |
| 2020-09-10 | 13.225.65.104 (ClassC) |
| 2020-10-07 | 13.35.82.18 (ClassC) |
| 2021-01-27 | 65.8.186.99 (ClassC) |
| 2021-01-27 | 65.8.186.10 (ClassC) |
| 2021-03-20 | 13.225.50.54 (ClassC) |
| 2022-05-11 | 65.8.57.100 (ClassC) |
| 2023-08-27 | 35.203.130.56 (ClassC) |
| 2023-11-01 | 54.177.145.149 (ClassC) |
| 2024-09-30 | 54.67.4.46 (ClassC) |
| 2025-01-03 | 15.197.167.90 (ClassC) |
| 2025-01-11 | 3.33.186.135 (ClassC) |
| Date | Domain | IP |
| www.physicscentral.com | 2024-08-26 | 54.177.145.149 |
| physicsbuzz.physicscentral.com | 2013-11-27 | 74.125.194.121 |