Information about .aetna

Nameservers

NameserverAAAAA
ns1.dns.nic.aetna
ns2.dns.nic.aetna
ns3.dns.nic.aetna
ns4.dns.nic.aetna
ns5.dns.nic.aetna
ns6.dns.nic.aetna

More detailed DNS data can be found from here.