| Date | IP Address |
| 2020-01-29 | 91.195.240.126 (ClassC) |
| 2025-11-03 | 64.190.63.222 (ClassC) |
| Date | Domain | IP |
| 000.auth-staging.udacity.com.cdn.de | 2025-06-24 | 64.190.63.222 |
| 000.000.auth-staging.udacity.com.cdn.de | 2025-04-18 | 64.190.63.222 |
| 000.challenge-api.udacity.com.cdn.de | 2025-07-04 | 64.190.63.222 |
| 000.000.challenge-api.udacity.com.cdn.de | 2025-06-14 | 64.190.63.222 |
| 000.000.study-hall.udacity.com.cdn.de | 2025-11-03 | 64.190.63.222 |
| 000.graduation.udacity.com.cdn.de | 2025-06-14 | 64.190.63.222 |
| 000.career.udacity.com.cdn.de | 2025-08-28 | 64.190.63.222 |
| 000.printer.udacity.com.cdn.de | 2025-07-06 | 64.190.63.222 |
| 000.flutter.udacity.com.cdn.de | 2025-05-09 | 64.190.63.222 |
| 000.000.flutter.udacity.com.cdn.de | 2025-04-19 | 64.190.63.222 |
| 000.docs.udacity.com.cdn.de | 2025-07-16 | 64.190.63.222 |
| 000.intl-webhooks.udacity.com.cdn.de | 2025-08-15 | 64.190.63.222 |
| 000.000.intl-webhooks.udacity.com.cdn.de | 2025-10-09 | 64.190.63.222 |
| 000.eu.udacity.com.cdn.de | 2025-04-20 | 64.190.63.222 |