| Date | IP Address |
| 2023-08-04 | 23.212.252.130 (ClassC) |
| 2024-08-31 | 23.11.215.99 (ClassC) |
| 2024-09-15 | 23.11.215.73 (ClassC) |
| 2024-10-14 | 23.212.0.238 (ClassC) |
| 2025-02-03 | 23.202.229.202 (ClassC) |
| 2025-04-23 | 23.11.215.139 (ClassC) |
| 2026-01-12 | 23.47.149.176 (ClassC) |
| 2026-01-22 | 23.47.149.131 (ClassC) |
| Date | Domain | IP |
| pdcsmtp02.incometax.gov.in | 2013-04-18 | 125.19.19.84 |
| static.incometax.gov.in | 2023-08-04 | 23.212.252.130 |
| eportal.incometax.gov.in | 2025-09-05 | 43.239.61.11 |
| webmail.incometax.gov.in | 2025-09-11 | 61.246.137.87 |
| info.incometax.gov.in | 2024-08-04 | 23.46.17.16 |
| chatbot.incometax.gov.in | 2024-08-24 | 43.239.61.16 |
| www.incometax.gov.in | 2023-08-04 | 23.211.60.53 |