| Date | IP Address |
| 2023-11-13 | 52.40.128.104 (ClassC) |
| 2024-06-01 | 34.208.169.228 (ClassC) |
| 2024-07-14 | 54.69.104.236 (ClassC) |
| 2024-07-14 | 35.164.184.119 (ClassC) |
| 2024-08-17 | 52.24.113.56 (ClassC) |
| 2024-09-30 | 52.24.185.59 (ClassC) |
| 2024-11-15 | 54.149.35.42 (ClassC) |
| 2024-11-25 | 52.25.223.4 (ClassC) |
| 2025-02-17 | 52.89.109.245 (ClassC) |
| 2025-03-21 | 52.26.30.217 (ClassC) |
| Date | Domain | IP |
| portal.avatax.com | 2024-10-02 | 35.170.210.211 |
| www.avatax.com | 2023-11-13 | 52.40.128.104 |