ns.noridian.com has one IP number , which also has a corresponding reverse pointer. ns.bcbsnd.com point to the same IP. lml.com, ush3a.us, ush3a.org, ush3a.com, ush3a.net and at least 51 other hosts use this as a nameserver. noridian.com is a domain controlled by two nameservers at noridian.com themselves. They are on different IP networks. Incoming mail for noridian.com is handled by two mailservers having a total of three IP numbers. Two of them are on the same IP network. noridian.com has two IP numbers. They are on different IP networks. ns.noridian.com is hosted on a server in United States.