| Date | IP Address |
| 2018-02-08 | 52.84.14.145 (ClassC) |
| 2018-05-02 | 13.33.126.90 (ClassC) |
| 2021-02-27 | 54.239.174.73 (ClassC) |
| 2024-03-09 | 54.88.103.50 (ClassC) |
| 2024-07-04 | 34.200.211.171 (ClassC) |
| 2024-09-10 | 50.16.196.240 (ClassC) |
| 2025-04-21 | 54.198.78.145 (ClassC) |
| 2025-05-01 | 44.221.113.214 (ClassC) |
| 2025-06-07 | 54.88.245.157 (ClassC) |
| 2025-07-10 | 52.86.157.154 (ClassC) |
| 2025-11-22 | 18.211.98.183 (ClassC) |
| Date | Domain | IP |
| launchpad.mastec.com | 2025-10-23 | 44.195.120.223 |
| gatekeeper.mastec.com | 2025-09-11 | 44.210.73.255 |
| empower.mastec.com | 2025-09-12 | 104.18.37.75 |
| careers.mastec.com | 2025-09-06 | 3.216.86.102 |
| mnscareers.mastec.com | 2024-03-09 | 54.88.103.50 |
| investors.mastec.com | 2024-02-16 | 184.28.93.16 |
| launchpad-dev.mastec.com | 2025-10-14 | 34.224.19.248 |
| gatekeeper-dev.mastec.com | 2025-11-22 | 34.226.106.152 |