Summary
ns2.sphere.ad.jp has one IP number , which also has a corresponding reverse pointer.
ns3.vcpn.com cnames to this hostname.
ns2.fasp.jp,
ds3.exmb.jp,
ns.v-pit.com,
open.1and.net,
ns3.netya.com and at least ten other hosts point to the same IP.
mru.jp,
jgi.jp,
365.st,
vjc.jp,
alib.jp and at least 100 other hosts use this as a nameserver.
anys.ne.jp use this as a mailserver.
sphere.ad.jp is a domain controlled by three nameservers. Two of them are on the same IP network. Incoming mail for
sphere.ad.jp is handled by one mailserver at
sphere.ad.jp themselves.
sphere.ad.jp has one IP number , but the reverse is
mail.sphere.ad.jp.
ns2.sphere.ad.jp is hosted on a server in Japan.