| Date | IP Address |
| 2024-03-10 | 3.231.75.193 (ClassC) |
| 2025-02-10 | 34.236.92.189 (ClassC) |
| 2025-04-28 | 54.85.245.218 (ClassC) |
| 2025-07-31 | 34.198.62.115 (ClassC) |
| 2025-09-11 | 34.193.87.22 (ClassC) |
| 2025-10-13 | 52.22.123.75 (ClassC) |
| 2025-12-04 | 98.88.227.170 (ClassC) |
| Date | Domain | IP |
| substances.p.cdk.test.gsrs.ncats.io | 2024-06-10 | 34.193.39.141 |
| m.jchem.test.gsrs.ncats.io | 2024-06-03 | 34.237.228.134 |
| substances.m.jchem.test.gsrs.ncats.io | 2024-03-10 | 3.231.75.193 |
| discovery.m.jchem.test.gsrs.ncats.io | 2024-11-24 | 54.81.92.125 |