| Date | IP Address |
| 2022-03-22 | 104.18.10.20 (ClassC) |
| 2025-12-11 | 172.64.155.54 (ClassC) |
| 2026-02-08 | 104.18.32.202 (ClassC) |
| Date | Domain | IP |
| aleph01.gpo.gov | 2026-01-27 | 52.70.187.133 |
| hqsmtp01.gpo.gov | 2014-05-29 | 162.140.64.8 |
| metalib.gpo.gov | 2025-06-12 | 104.17.214.194 |
| memberguide.gpo.gov | 2025-12-13 | 13.107.253.70 |
| www.memberguide.gpo.gov | 2025-12-13 | 13.107.213.70 |
| bensguide.gpo.gov | 2025-11-19 | 104.17.147.10 |
| bookstore.gpo.gov | 2025-08-17 | 104.17.125.185 |
| catalog.gpo.gov | 2025-11-19 | 104.17.214.194 |
| m.gpo.gov | 2025-11-20 | 104.17.20.2 |
| contractorconnection.gpo.gov | 2019-11-04 | 104.17.186.8 |
| pueblo.gpo.gov | 2025-12-12 | 172.64.155.54 |
| creativeservices.gpo.gov | 2025-12-14 | 104.18.32.202 |
| frwebgate.access.gpo.gov | 2025-10-30 | 104.18.32.215 |
| purl.access.gpo.gov | 2019-09-07 | 146.20.24.124 |
| winapps.access.gpo.gov | 2026-01-04 | 162.140.254.72 |
| edocket.access.gpo.gov | 2026-01-21 | 172.64.155.41 |
| permanent.access.gpo.gov | 2025-11-01 | 104.17.11.189 |
| financialdocuments.gpo.gov | 2025-12-11 | 172.64.155.54 |
| redirect.gpo.gov | 2025-12-05 | 104.18.32.202 |
| wdet.gpo.gov | 2024-05-14 | 104.18.32.202 |
| api-wdet.gpo.gov | 2025-11-06 | 104.18.32.202 |
| conferencereport.gpo.gov | 2025-12-09 | 13.107.226.70 |
| www.conferencereport.gpo.gov | 2026-01-21 | 13.107.226.70 |
| aleph01-test.gpo.gov | 2025-12-15 | 52.22.159.147 |
| contractorconnection.test.gpo.gov | 2019-06-12 | 104.17.159.183 |
| fdmtest.gpo.gov | 2025-12-11 | 104.18.223.176 |
| www.gpo.gov | 2013-06-21 | 4.27.12.253 |