| Property | Value |
| spdnsadm@us.ibm.com | |
| NameServer | NS1.SILVERPOP.COM |
| Created | 2013-04-03 00:00:00 |
| Changed | 2015-03-02 00:00:00 |
| Expires | 2016-04-03 00:00:00 |
| Registrar | MARKMONITOR INC. |
| Date | IP Address |
| 2020-11-18 | 74.112.69.8 (ClassC) |
| 2025-05-18 | 52.20.244.28 (ClassC) |
| 2025-05-28 | 18.233.206.218 (ClassC) |
| 2025-06-21 | 52.0.238.21 (ClassC) |
| 2025-06-22 | 3.234.48.114 (ClassC) |
| 2025-06-28 | 52.72.76.220 (ClassC) |
| 2025-08-21 | 3.89.208.242 (ClassC) |
| 2025-09-04 | 54.85.196.4 (ClassC) |
| 2025-09-23 | 54.208.74.253 (ClassC) |
| 2025-11-20 | 52.4.106.206 (ClassC) |
| Date | Domain | IP |
| harpercollins.mkt5882.com | 2025-05-28 | 18.233.206.218 |
| contentz.mkt5882.com | 2014-09-16 | 54.230.90.200 |