| Date | IP Address |
| 2022-05-30 | 184.31.72.84 (ClassC) |
| 2023-08-25 | 104.86.254.184 (ClassC) |
| 2024-04-20 | 23.222.147.20 (ClassC) |
| 2024-08-26 | 23.6.110.10 (ClassC) |
| 2024-11-08 | 23.64.119.54 (ClassC) |
| 2025-04-15 | 23.216.147.130 (ClassC) |
| 2025-06-19 | 23.213.53.76 (ClassC) |
| 2025-11-16 | 23.41.4.86 (ClassC) |
| 2025-11-28 | 23.194.127.72 (ClassC) |
| 2026-02-20 | 23.41.4.77 (ClassC) |
| Date | Domain | IP |
| trainingc.edit.stayexempt.irs.gov | 2023-08-25 | 104.86.254.184 |
| poc.edit.stayexempt.irs.gov | 2023-08-25 | 104.86.254.184 |
| trainingd.edit.stayexempt.irs.gov | 2023-08-25 | 23.5.254.84 |
| prod.edit.stayexempt.irs.gov | 2023-08-25 | 23.5.254.84 |
| pete.edit.stayexempt.irs.gov | 2023-08-25 | 104.86.254.184 |
| eite.edit.stayexempt.irs.gov | 2023-08-25 | 104.86.254.184 |
| bat.edit.stayexempt.irs.gov | 2023-08-25 | 104.86.254.184 |
| sit.edit.stayexempt.irs.gov | 2023-08-25 | 104.86.254.184 |
| dmesit.edit.stayexempt.irs.gov | 2023-08-25 | 104.86.254.184 |
| pmaint.edit.stayexempt.irs.gov | 2023-08-25 | 104.86.254.184 |
| dev.edit.stayexempt.irs.gov | 2023-08-25 | 104.86.254.184 |
| dmedev.edit.stayexempt.irs.gov | 2023-08-25 | 104.86.254.184 |
| www.pmaint.stayexempt.irs.gov | 2023-08-25 | 104.86.254.184 |
| www.stayexempt.irs.gov | 2015-03-11 | 173.205.10.17 |