www.nook.com.ar has one IP number , which is the same as for nook.com.ar, but the reverse is mx2977.godns.net. tsya.net, oajnu.org, masue.com, chaia.net, eolik.net and at least 100 other hosts point to the same IP. nook.com.ar is delegated to two nameservers, however both delegated nameservers are missing in the zone and two other nameservers are listed instead. There are two duplicated IP numbers. Some of them are on the same IP network. Incoming mail for nook.com.ar is handled by five mailservers at nook.com.ar themselves. Some of them are on the same IP network. www.nook.com.ar is hosted on a server in Argentina.