| base | record | name | ip | reverse | route | as |
| tc.edu | ns-soa | master-ns.columbia.edu | 128.59.59.241 United States | 128.59.0.0/16 | AS14 COLUMBIA University in the City of New York Network Operations Academic Information Systems 612 West 115th Street New York, NY 10025 |
| ns | ext-ns1.columbia.edu | 128.59.59.165 United States |
| dns2.itd.umich.edu | 141.211.125.15 United States | twelvemonkeys.mr.itd.umich.edu | 141.211.0.0/16 University of Michigan IT Communications Services 4251 Plymouth Road Ann Arbor MI 48105, US | AS36375 UMICH-ASN1 University of Michigan |
| mx | 30 | tcmail1.tc.columbia.edu | 160.39.80.42 United States | 160.39.0.0/16 | AS14 COLUMBIA University in the City of New York Network Operations Academic Information Systems 612 West 115th Street New York, NY 10025 |
| edu | ns-soa | a.gtld-servers.net | 192.5.6.30 United States | 192.5.6.0/24 VeriSign Route | AS36621 VERISIGN-AS VeriSign, Inc |
| ns | a.gtld-servers.net | 192.5.6.30 United States |
| c.gtld-servers.net | 192.26.92.30 United States | 192.26.92.0/24 VeriSign Route | AS36625 VERISIGN-AS VeriSign, Inc |
| d.gtld-servers.net | 192.31.80.30 United States | 192.31.80.0/24 VeriSign Route | AS36617 VERISIGN-AS VeriSign, Inc |
| e.gtld-servers.net | 192.12.94.30 United States | 192.12.94.0/24 VeriSign Route | AS36629 VERISIGN-AS VeriSign, Inc |
| f.gtld-servers.net | 192.35.51.30 United States | 192.35.51.0/24 VeriSign Route | AS36625 VERISIGN-AS VeriSign, Inc |
| g.gtld-servers.net | 192.42.93.30 United States | 192.42.93.0/24 VeriSign Route | AS36624 VERISIGN-AS VeriSign, Inc |
| l.gtld-servers.net | 192.41.162.30 United States | 192.41.162.0/24 VeriSign Route | AS36628 VERISIGN-AS VeriSign, Inc |