Summary
nj.rr.com is a domain controlled by two nameservers at
rdc-nyc.rr.com. They are on the same IP network. Incoming mail for
nj.rr.com is handled by two mailservers at
mail.rr.com. They are on the same IP network.
si.rr.com,
nyc.rr.com and
hvc.rr.com share both nameservers and mailservers with this domain.
si.res.rr.com,
nj.res.rr.com,
hvc.res.rr.com,
nyc.res.rr.com,
rdc-nyc.rr.com and at least 52 other hosts share nameservers with this domain.
kc.rr.com,
gt.rr.com,
sw.rr.com,
we.rr.com,
wi.rr.com and at least 24 other hosts share mailservers with this domain.
home.nj.rr.com,
njpop5fa.nj.rr.com,
njpop5fb.nj.rr.com,
njsmtp4fb.nj.rr.com,
njsmtp4fa.nj.rr.com and at least five other hosts are subdomains to this hostname.
rr.com is a domain controlled by five nameservers at
rr.com themselves. Some of them are on the same IP network. Incoming mail for
rr.com is handled by two mailservers also at
mail.rr.com. They are on different IP networks.
rr.com has one IP number.