| Date | IP Address |
| 2013-04-01 | 65.121.209.9 (ClassC) |
| 2013-08-16 | 207.86.215.163 (ClassC) |
| 2013-08-19 | 207.86.215.161 (ClassC) |
| 2013-10-23 | 165.254.155.32 (ClassC) |
| 2013-11-14 | 204.2.222.122 (ClassC) |
| 2014-02-10 | 96.6.46.41 (ClassC) |
| 2014-02-12 | 209.170.117.57 (ClassC) |
| 2014-02-20 | 205.234.218.49 (ClassC) |
| 2014-12-30 | 23.52.45.79 (ClassC) |
| 2018-05-28 | 104.113.57.135 (ClassC) |
| 2019-06-16 | 23.4.117.235 (ClassC) |
| 2019-09-18 | 184.31.192.218 (ClassC) |
| 2019-09-23 | 104.65.32.129 (ClassC) |
| 2023-08-25 | 104.86.232.121 (ClassC) |
| 2023-09-14 | 23.194.145.188 (ClassC) |
| 2023-10-16 | 23.37.223.178 (ClassC) |
| 2024-01-29 | 104.112.183.217 (ClassC) |
| 2024-03-24 | 2.19.143.107 (ClassC) |
| 2024-05-23 | 23.41.4.68 (ClassC) |
| 2024-06-17 | 23.54.19.97 (ClassC) |
| 2024-07-12 | 23.54.19.185 (ClassC) |
| 2024-08-01 | 23.41.4.74 (ClassC) |
| 2024-09-06 | 104.103.69.120 (ClassC) |
| 2025-02-08 | 104.100.168.153 (ClassC) |
| 2025-03-06 | 104.103.68.203 (ClassC) |
| 2025-03-15 | 104.103.68.217 (ClassC) |
| 2025-03-28 | 104.100.168.161 (ClassC) |
| 2025-05-25 | 104.100.168.154 (ClassC) |
| 2025-07-16 | 104.100.168.155 (ClassC) |
| 2025-08-10 | 104.100.168.146 (ClassC) |
| Date | Domain | IP |
| mail.ota.treas.gov | 2025-07-30 | 164.95.151.17 |
| sanctionslistservice.ofac.treas.gov | 2025-08-08 | 164.95.9.80 |
| sanctionssearch.ofac.treas.gov | 2025-07-06 | 164.95.8.162 |
| sanctionslist.ofac.treas.gov | 2025-07-21 | 164.95.8.134 |
| irsoversightboard.treas.gov | 2023-08-25 | 104.86.232.121 |
| www.irsoversightboard.treas.gov | 2023-08-25 | 104.86.232.121 |
| pki.treas.gov | 2024-07-06 | 164.95.89.25 |
| fincen.treas.gov | 2025-07-19 | 166.123.218.125 |
| bsaefiling1.fincen.treas.gov | 2025-07-01 | 166.123.218.110 |
| bsaefiling.fincen.treas.gov | 2024-05-24 | 166.123.230.140 |
| www.irs.treas.gov | 2014-06-10 | 64.145.86.34 |
| publicdebt.treas.gov | 2025-05-07 | 166.123.219.2 |
| www.treas.gov | 2013-11-14 | 204.2.222.122 |