| Date | IP Address |
| 2024-06-03 | 34.237.228.134 (ClassC) |
| 2025-05-13 | 3.217.248.62 (ClassC) |
| 2025-07-18 | 50.19.183.232 (ClassC) |
| 2025-08-01 | 3.218.229.241 (ClassC) |
| 2025-09-05 | 54.173.209.59 (ClassC) |
| 2025-09-24 | 54.205.200.134 (ClassC) |
| 2025-12-04 | 18.214.226.56 (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 |