ns1.clara.net has one IP number , which also has a corresponding reverse pointer. co2.org, anfp.com, 4mat.com, u-net.com, clara.net and at least 100 other hosts use this as a nameserver. clara.net is a domain controlled by three nameservers at clara.net themselves. All of them are on different IP networks. Incoming mail for clara.net is handled by one mailserver also at clara.net. clara.net has one IP number. ns1.clara.net is hosted on a server in United Kingdom.