vfc.com.ar, qbe.com.ar, rctzz.com.ar, funes.com.ar, bomchil.com.ar and at least four other hosts use this as a nameserver. iplannetworks.net is delegated to three nameservers, however all three delegated nameservers are missing in the zone and two other nameservers are listed. There are two duplicated IP numbers. Some of them are on the same IP network. Incoming mail for iplannetworks.net is handled by three mailservers at iplannetworks.net themselves. Two of them are on the same IP network.