| Date | IP Address |
| 2025-10-23 | 52.126.191.77 (ClassC) |
| Date | Domain | IP |
| ns02.houstontx.gov | 2025-07-09 | 204.235.229.57 |
| cohsf03.houstontx.gov | 2013-05-16 | 204.235.234.40 |
| cohsf04.houstontx.gov | 2025-06-02 | 204.235.229.36 |
| cohsccmcmg.houstontx.gov | 2024-11-15 | 23.101.179.22 |
| azadfs.houstontx.gov | 2025-10-23 | 52.126.191.77 |
| cyrusoneeadns.houstontx.gov | 2025-08-16 | 204.235.229.57 |
| permits.houstontx.gov | 2025-10-23 | 98.87.117.202 |
| www.houstontx.gov | 2025-07-05 | 204.235.229.46 |