go
srv1.one.com has one IP number , which also has a corresponding reverse pointer. j1.se, rob.dk, ies.dk, vcs.dk, hfd.dk and at least 100 other hosts point to the same IP. one.com is a domain controlled by two nameservers at b-one-dns.net. They are on the same IP network. Incoming mail for one.com is handled by two mailservers at one.com themselves. They are on the same IP network. one.com has one IP number. srv1.one.com is hosted on a server in Denmark.

srv1.one.com
a records
 
+ 195.47.247.47 195.47.247.0/24 AS16245 -
+ --- -

one.com
a records
 
+ 195.47.247.252 195.47.247.0/24 AS16245  
+ ---  
ns-soa records
a.b-one-dns.net
+ 195.47.247.13 195.47.247.0/24 AS16245 -
+ --- -
ns records
a.b-one-dns.net
+ 195.47.247.13 195.47.247.0/24 AS16245 -
+ --- -
b.b-one-dns.net
+ 195.47.247.14 195.47.247.0/24 AS16245 -
mx records
mx-cluster1.one.com
+ 91.198.169.10 91.198.169.0/24 AS16245 -
+ --- -
mx-cluster2.one.com
+ 91.198.169.11 91.198.169.0/24 AS16245 -
ip numbers of host
195.47.247.47
ptrs of ip numbers
srv1.one.com
ip numbers using ptr to this host
195.47.247.47
hostnames sharing ip with a-records
24www.de
277.dk
a-alroee-kiropraktor.dk
aalborgfaegteklub.dk
admipro.dk
alfsvag.net
artmetro.net
aspero.net
atov.net
australienshistorie.dk
avlid.net
baseman.dk
bbj-psykoterapi.dk
bearsite.net
bengtstradgard.net
bikinigirls.dk
billigtele.net
blankx.net
bloodyevil.net
bodenkunde-online.de
boisens.net
bon127.dk
borrits.net
brevkasse.net
camila-online.net
cawi.net
cherita.dk
clear-river.net
cobraalliance.net
consaid.net
curenstam.net
dansbjerg.dk
doktors.net
dolberg.net
dubanni.net
ebbesson.net
edderkoppe.net
eltok.net
engkvist.net
expleo.net
fagerstad.net
faldt.net
ferrypin.net
fishmate.net
fournais.net
gate42.net
groenning.net
gudiksen.dk
hagen.info
halfvarson.net
havnegade.net
hbmx.net
hectech.net
hezzel.net
hfd.dk
hoikkala.net
hudibras.net
ies.dk
interface1.net
isopor.net
itprat.net
j1.se
kleif.net
konstantinopel.net
kvant.dk
late.dk
lhli.net
lowertech.net
luii.net
lundegaarden.net
malungsvagen.net
martinsen.org
min-hemsida.net
moldrup.net
munksgaard.net
murermester.net
n-tuple.net
naisetkalastavat.net
naturfotografen.net
nikolais-engle.dk
norheimsund.net
nwelite.net
opus-hadeland.net
orebroapnea.net
osku.net
ostbergs.net
ourlounge.net
overbye.net
psykodynamisk-psykoterapi.net
range.dk
razzan.net
rob.dk
rockndoll.net
romfax.dk
rune-saints.net
sanfridsson.net
schodt.dk
seriecentrum.com
setterwall.net
sk7mo.se
skallen.net
skjerning.net
skogsdungen.net
sp-in.dk
srv1.b-one.net
stigandersen.net
strek1.net
sygt.dk
tamilcircle.net
thores.net
tjalfe.net
tolana.net
transmotec.net
uthaug.net
vcs.dk
vimen.net
willborg.net
yo3d.com
yooda.net
ztatic.net
zykla.net