www.lamdong.edu.vn has one IP number , which is the same as for lamdong.edu.vn, via cname , but the reverse is dns3.nsvngt.net. suro.vn, nsvngt.net, jfcvietnam.com, ns5.nsvngt.net, ns3.nsvngt.net and at least six other hosts point to the same IP. lamdong.edu.vn is delegated to two nameservers, however one delegated nameserver is missing in the zone. All nameservers are at nsvngt.net. They are on the same IP network. Incoming mail for lamdong.edu.vn is handled by five mailservers having a total of eleven IP numbers. Two mailservers have the same IP number. Some of them are on the same IP network. www.lamdong.edu.vn is hosted on a server in Vietnam.