| Date | IP Address |
| 2021-05-12 | 23.198.6.27 (ClassC) |
| 2021-07-19 | 172.232.13.24 (ClassC) |
| 2021-07-19 | 172.232.13.49 (ClassC) |
| 2021-08-02 | 184.25.237.115 (ClassC) |
| 2021-08-04 | 104.93.21.153 (ClassC) |
| 2021-09-12 | 23.52.42.207 (ClassC) |
| 2021-11-15 | 23.66.127.200 (ClassC) |
| 2024-07-18 | 23.44.175.165 (ClassC) |
| 2024-10-02 | 23.54.19.153 (ClassC) |
| 2024-10-10 | 23.46.17.9 (ClassC) |
| 2024-11-11 | 23.46.17.18 (ClassC) |
| 2024-11-25 | 23.46.17.52 (ClassC) |
| 2024-12-28 | 23.46.228.172 (ClassC) |
| 2025-01-01 | 23.46.228.170 (ClassC) |
| Date | Domain | IP |
| static.nfpa.org | 2024-11-19 | 161.47.147.139 |
| codesonline.nfpa.org | 2024-11-19 | 104.18.3.98 |
| www.codesonline.nfpa.org | 2024-11-19 | 161.47.147.136 |
| institute.nfpa.org | 2024-11-19 | 104.18.2.98 |
| 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 | 2024-11-19 | 104.18.2.98 |
| content.mi.nfpa.org | 2024-09-19 | 204.246.191.8 |
| link.nfpa.org | 2024-12-29 | 34.237.183.35 |
| go.nfpa.org | 2014-01-21 | 108.168.254.38 |
| metrics.nfpa.org | 2014-03-01 | 66.235.138.198 |
| services.nfpa.org | 2024-11-19 | 104.18.3.98 |
| cms.nfpa.org | 2024-07-18 | 23.44.175.165 |
| nfcsspreview.nfpa.org | 2024-11-19 | 104.18.2.98 |
| www.nfpa.org | 2024-12-28 | 104.18.2.98 |