| Date | IP Address |
| 2025-04-25 | 129.6.13.19 (ClassC) |
| 2025-05-08 | 172.65.90.27 (ClassC) |
| Date | Domain | IP |
| time-a.nist.gov | 2025-04-23 | 129.6.15.28 |
| bea.nist.gov | 2025-04-20 | 132.163.3.10 |
| gea.nist.gov | 2025-04-25 | 129.6.92.10 |
| time-b.nist.gov | 2025-04-25 | 129.6.15.29 |
| ntp-b.nist.gov | 2025-04-25 | 132.163.96.5 |
| usgcb.nist.gov | 2025-04-30 | 18.235.227.114 |
| ntp1.glb.nist.gov | 2024-08-09 | 132.163.97.1 |
| csrc.glb.nist.gov | 2025-04-07 | 18.235.227.114 |
| time.glb.nist.gov | 2025-04-20 | 129.6.13.35 |
| beacon.glb.nist.gov | 2025-04-20 | 18.235.227.114 |
| nistproxy-aws.glb.nist.gov | 2025-04-05 | 18.235.227.114 |
| ntptest.glb.nist.gov | 2024-10-23 | 132.163.96.1 |
| webbook-proxy.glb.nist.gov | 2025-04-24 | 129.6.13.9 |
| csrc.nist.gov | 2025-03-21 | 18.235.227.114 |
| wtc.nist.gov | 2024-06-03 | 54.162.67.105 |
| logind.nist.gov | 2024-11-21 | 15.200.153.34 |
| nvd.nist.gov | 2019-03-19 | 129.6.13.177 |
| web.nvd.nist.gov | 2025-04-07 | 18.235.227.114 |
| services.nvd.nist.gov | 2025-03-17 | 18.235.227.114 |
| ace.nist.gov | 2024-10-06 | 129.6.13.49 |
| code.nist.gov | 2025-04-20 | 18.235.227.114 |
| baldrige.nist.gov | 2024-12-07 | 52.45.83.228 |
| www.baldrige.nist.gov | 2024-08-14 | 54.165.224.197 |
| time.nist.gov | 2013-07-11 | 12.10.191.251 |
| www.nccoe.nist.gov | 2025-03-29 | 172.65.90.25 |
| fire.nist.gov | 2024-08-07 | 54.145.99.223 |
| sre.nist.gov | 2025-04-01 | 54.85.30.225 |
| vote.nist.gov | 2024-09-13 | 54.175.52.26 |
| time-a-g.nist.gov | 2025-05-03 | 129.6.15.28 |
| time-b-g.nist.gov | 2025-04-25 | 129.6.15.29 |
| time-d-g.nist.gov | 2025-04-25 | 129.6.15.27 |
| gtmg.nist.gov | 2025-04-26 | 129.6.13.8 |
| actev-staging.nist.gov | 2023-12-23 | 54.85.30.225 |
| mbark.nist.gov | 2025-04-20 | 18.235.227.114 |
| www.mel.nist.gov | 2024-08-20 | 54.152.138.124 |
| stonewall.nist.gov | 2024-07-07 | 54.144.191.225 |
| www.hml.nist.gov | 2024-10-21 | 52.71.191.86 |
| www.bfrl.nist.gov | 2024-08-12 | 54.173.78.238 |
| www.nsrl.nist.gov | 2024-07-07 | 54.174.178.34 |
| 5gmm.nist.gov | 2025-04-07 | 18.235.227.114 |
| ncp.nist.gov | 2025-04-19 | 54.85.30.225 |
| time-a.boulder.nist.gov | 2025-04-20 | 132.163.96.1 |
| mail.boulder.nist.gov | 2025-04-25 | 129.6.16.94 |
| timegov.boulder.nist.gov | 2025-04-25 | 132.163.4.175 |
| www-nlpir.nist.gov | 2025-03-16 | 132.163.4.175 |
| nvlpubs.nist.gov | 2025-04-10 | 129.6.13.19 |
| www.cfreds.nist.gov | 2024-11-11 | 54.85.30.225 |
| pages.nist.gov | 2025-05-05 | 54.85.30.225 |
| image.updates.nist.gov | 2025-03-18 | 104.103.68.83 |
| meis.nist.gov | 2025-04-20 | 18.235.227.114 |
| iris.nist.gov | 2025-04-07 | 54.85.30.225 |
| abacus.nist.gov | 2025-04-11 | 18.235.227.114 |
| www.cftt.nist.gov | 2024-07-14 | 54.165.63.209 |
| timegov.nist.gov | 2025-04-25 | 129.6.13.19 |
| time-a-wwv.nist.gov | 2025-04-25 | 132.163.97.1 |
| time-c-wwv.nist.gov | 2025-04-24 | 132.163.97.3 |
| time-d-wwv.nist.gov | 2025-04-25 | 132.163.97.4 |
| www.nist.gov | 2023-08-04 | 54.172.23.112 |