| Date | IP Address |
| 2015-03-04 | 54.225.206.186 (ClassC) |
| 2015-06-25 | 54.204.5.212 (ClassC) |
| 2015-07-12 | 23.21.197.144 (ClassC) |
| 2015-07-29 | 54.204.25.229 (ClassC) |
| 2015-09-01 | 54.225.69.146 (ClassC) |
| 2015-09-18 | 54.243.60.28 (ClassC) |
| 2015-10-23 | 54.243.225.35 (ClassC) |
| 2015-11-09 | 184.73.240.107 (ClassC) |
| 2016-05-12 | 54.235.95.216 (ClassC) |
| 2016-07-19 | 23.23.120.199 (ClassC) |
| 2024-07-06 | 52.21.227.162 (ClassC) |
| 2024-09-19 | 54.237.159.171 (ClassC) |
| 2025-04-14 | 15.197.246.237 (ClassC) |
| 2026-01-17 | 99.83.183.127 (ClassC) |
| 2026-01-21 | 52.223.46.195 (ClassC) |
| 2026-02-20 | 3.33.193.101 (ClassC) |
| Date | Domain | IP |
| cdn.schoolcalendars.org | 2024-07-20 | 99.84.71.88 |
| www.schoolcalendars.org | 2015-03-04 | 54.225.206.186 |
| cdn.www.schoolcalendars.org | 2024-07-25 | 99.84.71.66 |