| Date | IP Address |
| 2018-05-12 | 128.121.3.2 (ClassC) |
| 2025-02-25 | 104.18.2.98 (ClassC) |
| 2025-05-09 | 104.18.3.98 (ClassC) |
| Date | Domain | IP |
| data.nfpa.org | 2025-03-09 | 104.18.2.98 |
| static.nfpa.org | 2024-11-19 | 161.47.147.139 |
| manage.nfpa.org | 2025-03-13 | 104.18.2.98 |
| codesonline.nfpa.org | 2025-03-16 | 104.18.2.98 |
| www.codesonline.nfpa.org | 2025-04-30 | 161.47.147.136 |
| institute.nfpa.org | 2025-03-20 | 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 | 2025-04-16 | 104.18.2.98 |
| content.mi.nfpa.org | 2024-10-18 | 18.238.217.45 |
| 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 |
| downloads.nfpa.org | 2025-05-08 | 104.18.2.98 |
| nfcdownloads.nfpa.org | 2025-04-19 | 104.18.3.98 |
| services.nfpa.org | 2025-04-12 | 104.18.3.98 |
| cms.nfpa.org | 2024-07-18 | 23.44.175.165 |
| careers.nfpa.org | 2025-02-25 | 104.18.2.98 |
| nfcsspreview.nfpa.org | 2025-02-08 | 104.18.2.98 |
| www.nfpa.org | 2025-02-05 | 104.18.2.98 |