| Date | IP Address |
| 2017-12-08 | 13.57.132.171 (ClassC) |
| 2018-04-19 | 54.215.160.125 (ClassC) |
| 2018-08-24 | 54.219.141.207 (ClassC) |
| 2018-09-29 | 54.219.148.116 (ClassC) |
| 2019-01-24 | 54.67.72.105 (ClassC) |
| 2019-02-22 | 54.193.115.224 (ClassC) |
| 2019-03-21 | 54.215.164.101 (ClassC) |
| 2019-09-10 | 52.9.3.156 (ClassC) |
| 2019-11-20 | 54.67.21.49 (ClassC) |
| 2020-03-10 | 54.193.110.10 (ClassC) |
| 2020-04-01 | 54.241.40.41 (ClassC) |
| 2020-04-26 | 13.57.132.177 (ClassC) |
| 2020-05-26 | 52.9.108.78 (ClassC) |
| 2020-08-16 | 52.9.169.7 (ClassC) |
| 2020-09-02 | 52.9.9.59 (ClassC) |
| 2020-11-08 | 13.56.137.41 (ClassC) |
| 2021-01-22 | 54.183.111.225 (ClassC) |
| 2021-06-10 | 54.153.92.35 (ClassC) |
| 2021-07-26 | 54.153.114.197 (ClassC) |
| 2025-08-27 | 69.164.208.144 (ClassC) |
| Date | Domain | IP |
| image.email.nrdc.org | 2024-11-17 | 23.44.175.163 |
| assets.nrdc.org | 2021-02-24 | 54.230.126.3 |
| act.nrdc.org | 2025-08-27 | 69.164.208.144 |
| www.nrdc.org | 2024-08-30 | 151.101.2.216 |