| Date | IP Address |
| 2025-01-14 | 3.83.186.143 (ClassC) |
| 2025-01-18 | 44.219.247.116 (ClassC) |
| 2025-02-13 | 54.172.138.192 (ClassC) |
| 2025-03-30 | 44.221.7.137 (ClassC) |
| 2025-04-13 | 52.202.149.66 (ClassC) |
| 2025-06-16 | 3.232.195.158 (ClassC) |
| 2025-06-27 | 50.16.22.154 (ClassC) |
| 2025-07-07 | 34.196.60.0 (ClassC) |
| 2025-07-23 | 44.199.79.143 (ClassC) |
| 2025-08-01 | 44.210.216.79 (ClassC) |
| 2025-08-22 | 52.45.14.41 (ClassC) |
| 2025-08-31 | 3.229.111.251 (ClassC) |
| 2025-09-19 | 34.205.250.253 (ClassC) |
| 2025-10-23 | 35.170.134.14 (ClassC) |
| 2025-11-05 | 54.225.172.14 (ClassC) |
| 2025-11-19 | 18.235.122.133 (ClassC) |
| Date | Domain | IP |
| v2.ellie.sharpen.prod.mheducation.com | 2025-09-08 | 3.33.204.205 |
| fred.api.sharpen.prod.mheducation.com | 2025-09-17 | 18.215.140.76 |
| libraengine.api.sharpen.prod.mheducation.com | 2025-10-21 | 98.85.174.66 |
| explore.api.sharpen.prod.mheducation.com | 2025-01-14 | 44.194.94.130 |
| user.api.sharpen.prod.mheducation.com | 2024-12-26 | 44.197.5.53 |
| payments.api.sharpen.prod.mheducation.com | 2024-12-26 | 3.233.193.73 |
| content.api.sharpen.prod.mheducation.com | 2025-01-14 | 3.83.186.143 |
| gateway.api.sharpen.prod.mheducation.com | 2025-09-19 | 76.223.21.218 |