| Date | IP Address |
| 2020-02-11 | 13.227.43.33 (ClassC) |
| 2020-02-11 | 13.227.43.67 (ClassC) |
| 2020-02-11 | 13.227.43.108 (ClassC) |
| 2020-04-23 | 99.84.102.55 (ClassC) |
| 2020-06-23 | 99.86.62.32 (ClassC) |
| 2020-09-02 | 13.224.38.10 (ClassC) |
| 2024-11-22 | 104.18.10.6 (ClassC) |
| 2025-01-06 | 104.18.11.6 (ClassC) |
| Date | Domain | IP |
| servicing.trn-firstmark.nelnetvelocity.com | 2024-11-22 | 104.18.10.6 |
| servicing.dev-firstmark.nelnetvelocity.com | 2024-09-19 | 104.18.9.80 |
| servicing.firstmark.nelnetvelocity.com | 2024-11-22 | 104.18.10.6 |
| servicing.trn-accessloans.nelnetvelocity.com | 2024-03-09 | 104.18.10.6 |