| Date | IP Address |
| 2021-01-07 | 13.57.147.3 (ClassC) |
| 2025-11-21 | 75.2.86.53 (ClassC) |
| Date | Domain | IP |
| mx10.rpg.org | 2025-05-05 | 99.83.232.3 |
| mx01.rpg.org | 2025-08-14 | 99.83.232.3 |
| exchange.rpg.org | 2025-03-22 | 99.83.232.3 |
| newmail.rpg.org | 2025-09-21 | 75.2.86.53 |
| mailer.rpg.org | 2025-11-21 | 75.2.86.53 |
| new.rpg.org | 2025-11-20 | 52.9.239.214 |
| www.rpg.org | 2025-04-02 | 99.83.232.3 |
| mailrelay.rpg.org | 2025-09-26 | 99.83.232.3 |