rctzz.com.ar is delegated to three nameservers, however one delegated nameserver is missing in the zone. Two of them are on the same IP network. Incoming mail for rctzz.com.ar is handled by one mailserver at rctzz.com.ar themselves. gpl.com.ar, vfc.com.ar, rhm.com.uy, qbe.com.ar, 3way.com.ar and at least 43 other hosts share nameservers with this domain. mx.rctzz.com.ar and www.rctzz.com.ar are subdomains to this hostname. com.ar is a domain controlled by six nameservers. All of them are on different IP networks.