| Date | IP Address |
| 2013-12-18 | 148.129.75.218 (ClassC) |
| 2014-03-15 | 23.66.190.175 (ClassC) |
| 2014-06-06 | 65.114.156.69 (ClassC) |
| 2025-05-16 | 148.129.75.166 (ClassC) |
| Date | Domain | IP |
| www2.census.gov | 2015-01-27 | 128.177.96.104 |
| covid19.census.gov | 2024-09-01 | 44.215.202.167 |
| data.census.gov | 2023-08-25 | 104.86.249.71 |
| gis.data.census.gov | 2025-05-14 | 148.129.75.202 |
| cbb.census.gov | 2024-09-27 | 184.73.71.122 |
| covid.census.gov | 2023-08-25 | 23.74.138.64 |
| respond.census.gov | 2023-08-25 | 104.86.249.71 |
| auth-prod.census.gov | 2024-12-23 | 15.200.176.166 |
| ns3e.census.gov | 2023-08-18 | 148.129.129.31 |
| usatrade.census.gov | 2023-08-25 | 104.86.249.71 |
| secure.census.gov | 2023-08-25 | 104.86.249.71 |
| accelerate.census.gov | 2024-06-27 | 18.161.6.14 |
| search.census.gov | 2024-11-25 | 3.212.98.165 |
| auth.census.gov | 2024-08-22 | 15.200.153.34 |
| api.census.gov | 2025-04-26 | 148.129.75.191 |
| portal.census.gov | 2025-04-25 | 148.129.75.206 |
| www.portal.census.gov | 2025-04-29 | 148.129.75.206 |
| coil.census.gov | 2024-08-29 | 18.161.6.66 |
| akamai-datastream.census.gov | 2023-08-25 | 104.86.249.71 |
| research.rm.census.gov | 2023-08-26 | 23.193.79.15 |
| www.cidr-webpub.econ.census.gov | 2023-08-25 | 104.86.249.71 |
| bhs.econ.census.gov | 2025-05-10 | 148.129.75.187 |
| centurion.census.gov | 2023-10-19 | 23.196.200.129 |
| shutdown.census.gov | 2023-08-25 | 104.86.249.71 |
| provisioning.tco.census.gov | 2025-05-11 | 148.129.75.246 |
| registration.tco.census.gov | 2025-04-22 | 148.129.75.245 |
| id-provider.tco.census.gov | 2025-04-26 | 148.129.75.144 |
| pss.tco.census.gov | 2025-05-11 | 148.129.75.143 |
| tigerweb.geo.census.gov | 2025-05-09 | 148.129.75.240 |
| mtgis-server.geo.census.gov | 2025-05-11 | 148.129.68.21 |
| econhelp.census.gov | 2025-04-26 | 148.129.75.187 |
| factfinder.census.gov | 2025-05-11 | 148.129.77.59 |
| jobs.census.gov | 2023-08-25 | 104.86.249.71 |
| datafutures.census.gov | 2024-09-03 | 3.163.24.7 |
| disasters.census.gov | 2025-01-14 | 104.18.33.59 |
| quickfacts.census.gov | 2014-03-18 | 204.93.46.193 |
| broadcast.census.gov | 2015-03-16 | 184.27.202.72 |
| respond.test.census.gov | 2023-08-25 | 104.86.249.71 |
| www.test.census.gov | 2023-08-25 | 104.86.249.71 |
| landview.census.gov | 2023-08-25 | 104.86.249.71 |
| www.census.gov | 2023-08-25 | 104.86.249.71 |
| survey.census.gov | 2024-12-14 | 23.41.4.81 |
| overseas.survey.census.gov | 2023-08-25 | 104.86.249.71 |