| Date | IP Address | 
| 2021-09-21 | 104.93.21.153 (ClassC) | 
| 2021-12-09 | 23.35.71.224 (ClassC) | 
| 2022-01-23 | 172.232.13.49 (ClassC) | 
| 2022-04-22 | 104.96.200.226 (ClassC) | 
| 2022-06-16 | 23.221.22.81 (ClassC) | 
| 2022-07-14 | 184.30.42.144 (ClassC) | 
| 2022-07-14 | 184.30.42.145 (ClassC) | 
| 2023-11-23 | 23.43.164.66 (ClassC) | 
| 2023-12-27 | 23.35.71.42 (ClassC) | 
| 2024-06-22 | 23.41.4.72 (ClassC) | 
| 2024-06-25 | 23.215.11.230 (ClassC) | 
| 2024-06-30 | 23.41.4.84 (ClassC) | 
| 2024-11-14 | 23.192.223.175 (ClassC) | 
| 2024-11-25 | 23.41.4.83 (ClassC) | 
| 2025-02-23 | 23.41.4.76 (ClassC) | 
| 2025-03-17 | 104.100.168.155 (ClassC) | 
| 2025-04-10 | 23.38.191.168 (ClassC) | 
| 2025-04-18 | 23.64.112.26 (ClassC) | 
| 2025-05-03 | 23.1.237.32 (ClassC) | 
| 2025-06-25 | 23.41.4.74 (ClassC) | 
| 2025-07-22 | 23.41.4.85 (ClassC) | 
| 2025-07-25 | 23.41.4.79 (ClassC) | 
| 2025-10-10 | 23.41.4.91 (ClassC) | 
| 2025-11-04 | 23.41.4.87 (ClassC) | 
| Date | Domain | IP | 
| api.postnetonline.com | 2024-10-01 | 23.54.19.163 | 
| api.demo.postnetonline.com | 2024-06-22 | 23.41.4.72 | 
| www.demo.postnetonline.com | 2024-09-30 | 23.54.19.153 | 
| www.postnetonline.com | 2024-11-10 | 23.41.4.74 |