| Date | IP Address |
| 2017-01-13 | 54.208.155.78 (ClassC) |
| 2020-04-05 | 3.86.61.12 (ClassC) |
| 2021-02-18 | 44.231.47.18 (ClassC) |
| 2021-02-18 | 52.4.60.56 (ClassC) |
| 2021-03-17 | 3.210.189.223 (ClassC) |
| 2021-05-19 | 44.230.241.136 (ClassC) |
| 2021-10-19 | 54.203.150.157 (ClassC) |
| 2021-11-23 | 44.224.108.141 (ClassC) |
| 2022-03-04 | 52.84.121.98 (ClassC) |
| 2022-03-04 | 52.84.121.128 (ClassC) |
| 2022-03-05 | 13.227.39.6 (ClassC) |
| 2022-03-05 | 99.84.42.96 (ClassC) |
| 2023-03-27 | 18.65.125.48 (ClassC) |
| 2023-04-23 | 13.249.39.24 (ClassC) |
| 2023-04-23 | 13.249.39.39 (ClassC) |
| 2023-09-16 | 65.8.228.4 (ClassC) |
| 2023-09-25 | 13.33.252.83 (ClassC) |
| 2024-10-18 | 18.238.217.45 (ClassC) |
| 2024-11-07 | 65.8.228.68 (ClassC) |
| 2025-01-27 | 18.238.217.30 (ClassC) |
| 2025-04-20 | 3.166.96.32 (ClassC) |
| 2025-04-30 | 204.246.191.120 (ClassC) |
| 2025-05-21 | 18.238.217.55 (ClassC) |
| 2025-07-02 | 18.161.6.115 (ClassC) |
| 2025-07-29 | 204.246.191.64 (ClassC) |
| 2025-08-04 | 204.246.191.8 (ClassC) |
| 2025-09-11 | 204.246.191.39 (ClassC) |
| 2025-12-22 | 3.169.173.12 (ClassC) |
| 2026-01-18 | 3.169.173.57 (ClassC) |
| Date | Domain | IP |
| data.nfpa.org | 2025-06-15 | 104.18.3.98 |
| static.nfpa.org | 2024-11-19 | 161.47.147.139 |
| manage.nfpa.org | 2025-08-22 | 104.18.2.98 |
| codesonline.nfpa.org | 2025-08-22 | 104.18.2.98 |
| www.codesonline.nfpa.org | 2025-12-30 | 161.47.147.136 |
| institute.nfpa.org | 2025-12-23 | 104.18.2.98 |
| training.nfpa.org | 2025-09-12 | 104.18.3.98 |
| catalog.nfpa.org | 2024-11-19 | 76.76.21.9 |
| nfpatoday.blog.nfpa.org | 2014-04-22 | 199.27.76.185 |
| safety.blog.nfpa.org | 2014-04-22 | 199.27.76.185 |
| research.nfpa.org | 2025-08-15 | 104.18.3.98 |
| content.mi.nfpa.org | 2024-10-18 | 18.238.217.45 |
| link.nfpa.org | 2024-12-29 | 34.237.183.35 |