Summary
impsat.net.ar is a domain controlled by two nameservers at
impsat.net.ar themselves. They are on different IP networks. Incoming mail for
impsat.net.ar is handled by one mailserver at
argentina.com.
impsat1.com.ar share both nameservers and mailservers with this domain.
impsat.com,
ccu.com.ar,
impsat.net,
cea.com.ve,
lv3.com.ar and at least 54 other hosts share nameservers with this domain.
griensu.com,
laqq.com.ar,
calipso.com,
datadistic.com,
mercado.com.ar and at least three other hosts share mailservers with this domain.
mx.impsat.net.ar,
ash.impsat.net.ar,
pop.impsat.net.ar,
ns1.impsat.net.ar,
ari.impsat.net.ar and at least 100 other hosts are subdomains to this hostname.
net.ar is delegated to five nameservers, however one delegated nameserver is missing in the zone and one other nameserver is listed instead. All of them are on different IP networks.