| Date | IP Address |
| 2016-04-24 | 52.84.236.119 (ClassC) |
| 2016-05-11 | 52.84.0.54 (ClassC) |
| 2016-05-28 | 52.84.0.31 (ClassC) |
| 2016-06-14 | 52.84.0.166 (ClassC) |
| 2016-07-18 | 54.230.6.254 (ClassC) |
| 2016-08-04 | 52.84.0.165 (ClassC) |
| 2016-09-07 | 54.192.89.243 (ClassC) |
| 2016-09-24 | 52.84.56.158 (ClassC) |
| 2016-10-28 | 52.84.63.71 (ClassC) |
| 2016-11-14 | 52.84.63.166 (ClassC) |
| 2016-12-01 | 52.84.63.193 (ClassC) |
| 2016-12-18 | 52.84.63.237 (ClassC) |
| 2017-01-21 | 52.84.63.216 (ClassC) |
| 2017-02-07 | 52.84.63.22 (ClassC) |
| 2017-02-07 | 52.84.63.185 (ClassC) |
| 2017-02-24 | 52.84.63.179 (ClassC) |
| 2017-04-10 | 52.84.7.153 (ClassC) |
| 2018-01-06 | 13.33.162.66 (ClassC) |
| 2018-02-01 | 13.33.166.240 (ClassC) |
| 2018-02-06 | 52.84.74.131 (ClassC) |
| 2019-04-15 | 13.33.155.104 (ClassC) |
| 2019-04-15 | 13.33.155.15 (ClassC) |
| 2024-07-25 | 99.84.71.66 (ClassC) |
| 2025-08-05 | 99.84.71.88 (ClassC) |
| 2025-08-24 | 99.84.71.118 (ClassC) |
| 2025-08-28 | 99.84.71.207 (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 |