| Date | IP Address |
| 2013-04-01 | 192.221.102.253 (ClassC) |
| 2013-05-06 | 205.128.94.253 (ClassC) |
| 2013-05-10 | 206.33.41.253 (ClassC) |
| 2013-06-04 | 192.221.123.252 (ClassC) |
| 2013-06-07 | 4.27.26.254 (ClassC) |
| 2013-06-21 | 4.27.12.253 (ClassC) |
| 2013-07-03 | 8.26.220.254 (ClassC) |
| 2013-07-05 | 199.93.46.254 (ClassC) |
| 2013-07-23 | 206.33.35.125 (ClassC) |
| 2013-08-16 | 8.26.218.126 (ClassC) |
| 2014-02-21 | 8.26.221.126 (ClassC) |
| 2014-06-12 | 8.254.72.126 (ClassC) |
| 2014-06-12 | 8.27.4.254 (ClassC) |
| 2014-06-30 | 8.27.243.253 (ClassC) |
| 2014-07-26 | 4.27.19.126 (ClassC) |
| 2014-11-17 | 8.254.64.126 (ClassC) |
| 2015-03-02 | 199.93.52.252 (ClassC) |
| 2015-04-12 | 4.27.18.126 (ClassC) |
| 2015-04-13 | 192.221.100.253 (ClassC) |
| 2015-04-14 | 204.160.126.253 (ClassC) |
| 2025-03-25 | 104.17.20.2 (ClassC) |
| 2025-03-30 | 104.17.21.2 (ClassC) |
| Date | Domain | IP |
| aleph01.gpo.gov | 2025-03-25 | 52.70.187.133 |
| hqsmtp01.gpo.gov | 2014-05-29 | 162.140.64.8 |
| metalib.gpo.gov | 2025-02-09 | 104.17.214.194 |
| bensguide.gpo.gov | 2025-03-07 | 104.17.147.10 |
| bookstore.gpo.gov | 2025-03-25 | 104.17.125.185 |
| catalog.gpo.gov | 2025-03-17 | 104.17.215.194 |
| m.gpo.gov | 2025-03-19 | 104.17.21.2 |
| contractorconnection.gpo.gov | 2025-02-11 | 104.19.213.24 |
| frwebgate.access.gpo.gov | 2025-02-20 | 104.18.32.215 |
| purl.access.gpo.gov | 2019-09-07 | 146.20.24.124 |
| winapps.access.gpo.gov | 2025-03-25 | 162.140.254.72 |
| edocket.access.gpo.gov | 2025-03-18 | 172.64.155.41 |
| permanent.access.gpo.gov | 2025-01-07 | 104.17.12.189 |
| wdet.gpo.gov | 2024-05-14 | 104.18.32.202 |
| api-wdet.gpo.gov | 2024-10-04 | 104.18.32.202 |
| aleph01-test.gpo.gov | 2025-03-25 | 52.22.159.147 |
| contractorconnection.test.gpo.gov | 2024-10-20 | 104.18.32.202 |
| fdmtest.gpo.gov | 2025-03-17 | 104.17.112.214 |
| www.gpo.gov | 2013-06-21 | 4.27.12.253 |