esc.edu.ar is delegated to three nameservers, however all three delegated nameservers are missing in the zone. Two of them are on the same IP network. ar, ba.ar, edu.ar, mil.ar, org.ar and at least 86 other hosts share nameservers with this domain. ns1.esc.edu.ar, iae.esc.edu.ar, www.esc.edu.ar, moe.esc.edu.ar, cnu.esc.edu.ar and at least 43 other hosts are subdomains to this hostname. edu.ar is a domain controlled by eight nameservers. Two of them are on the same IP network.