First Updated: May 08, 2011
Last Updated: May 05, 2024
| Name | First Seen |
|---|---|
| auth5.dns.cogentco.com | Nov 16, 2019 |
| auth4.dns.cogentco.com | Nov 16, 2019 |
| auth2.dns.cogentco.com | Nov 16, 2019 |
| auth1.dns.cogentco.com | Nov 16, 2019 |
| ext-ns1.columbia.edu |
| Name | First Seen | Last Seen |
|---|---|---|
| dns2.itd.umich.edu | Apr 16, 2024 | |
| sns-pb.isc.org | Mar 14, 2012 | Nov 22, 2019 |