ns3.cais.com has one IP number , which also has a corresponding reverse pointer. ns-prime.cais.com cnames to this hostname. ns3.cais.net and news.cais.net point to the same IP. cbc.org, sensi.net, arema.net, avsim.com, hannas.net and at least 100 other hosts use this as a nameserver. cais.com is delegated to three nameservers, however all three delegated nameservers are missing in the zone and six other nameservers are listed. All nameservers are at cais.net. All of them are on the same IP network. Incoming mail for cais.com is handled by one mailserver also at cais.net. cais.com has one IP number. ns3.cais.com is hosted on a server in United States.