go
mx01.1and1.com has one IP number , but the reverse is mx01.perfora.net. mx01.jobr.net, mx01.kluster.com, hermes.rjstas.net, mail1.chadmoran.com, mail.centerpoint.net and at least three other hosts cnames to this hostname. mx.1and1.com, mx.perfora.net, mx01.webwise.gr, mx01.uaemall.com, mx01.perfora.net and at least 13 other hosts point to the same IP. diosesluzyamor.org, diosesluzyamor.net, diosesluzyamor.com, lassagradasescrituras.net and lassagradasescrituras.org use this as a nameserver. ben.us, mrci.bz, bgmc.net, thetp.com, oplag.net and at least 100 other hosts use this as a mailserver. 1and1.com is a domain controlled by two nameservers at 1and1.com themselves. They are on the same IP network. Incoming mail for 1and1.com is handled by three mailservers at schlund.de. All of them are on the same IP network. 1and1.com has one IP number. mx01.1and1.com is hosted on a server in United States.

mx01.1and1.com
a records
 
+ 74.208.5.4 74.208.0.0/16 AS8560 mx01.perfora.net
+ --- mx01.perfora.net

1and1.com
a records
 
+ 74.208.4.12 74.208.0.0/16 AS8560  
+ ---  
ns-soa records
 
+   AS?  
+ ---  
ns records
ns27.1and1.com
+ 74.208.2.3 74.208.0.0/16 AS8560 -
+ --- -
ns28.1and1.com
+ 74.208.3.3 74.208.0.0/16 AS8560 -
mx records
mxintern0.schlund.de
+ 212.227.126.201 212.227.0.0/16 AS8560 mxintern.schlund.de
+ --- mxintern.schlund.de
mxintern1.schlund.de
+ 212.227.126.204 212.227.0.0/16 AS8560 mxintern.schlund.de
mxintern2.schlund.de
+ 212.227.126.205 212.227.0.0/16 AS8560 mxintern.schlund.de
ip numbers of host
74.208.5.4
ptrs of ip numbers
mx01.perfora.net
hostnames sharing ip with a-records
mail.badasshouse.com
mail.coppergifts.com
mail.hibberts.org
mail.investigacionescreacionistas.org
mail.randolphcountyheraldtribune.com
mail1.jasonandbecky.com
mail2.krtconsulting.com
mx.1and1.com
mx.perfora.net
mx01.aspenmediasolutions.com
mx01.goldmountainhosting.com
mx01.perfora.net
mx01.uaemall.com
mx01.webwise.gr
mx01.webwisehellas.gr
mx2.aircraftmailer.com
mx2.entrustsupport.com
mx2.thoughtmentor.com
hostnames pointing here by cname
hermes.rjstas.net
mail.centerpoint.net
mail1.chadmoran.com
mail1.netforttechnologies.com
mx.denverhosting.net
mx01.builderconsulting.com
mx01.jobr.net
mx01.kluster.com
domains using this as nameserver
diosesluzyamor.com
diosesluzyamor.net
diosesluzyamor.org
lassagradasescrituras.net
lassagradasescrituras.org
domains using this as mailserver
aaronandmarinda.net
africanetcom.com
agentmikel.com
amsale.com
avitage.com
ben.us
bestvibes.com
bgmc.net
bizcube.com
blindexsa.com
bonbrightwoolens.com
brainsavvy.com
braintankstudios.com
cambridgesupermarket.com
casieprotank.com
cbdelta.com
chicagostreetinn.com
cityofbluefield.com
compufind.com
countryfmj.com
currentrutledge.com
dacarinc.com
dagmedia.com
dakotajackson.com
daveedwards.com
dgarner.com
dnaofrelationships.com
duetproducts.com
e-lederer.com
eaglegen.com
earthsol.com
eighty20.com
exsprocessing.com
fortunemortgagecompany.com
ghetwa.com
golfhawkslanding.com
govmanage.com
gtacc.com
horselady.com
hortpix.com
howaboutyou.org
ianalexander.com
ivanlo.info
jimforte.com
kimberlyburke.com
knoxseminary.org
larrysbodyshop.com
lifelinefoods.com
lizajane.com
logixca.com
logosdaystar.com
mail.netvention.com
mail.reedprinting.com
mail.snapemr.com
manasmachine.com
marcusmartiniheaven.com
mayerson.com
mdfbus.com
medicalstaffingoption.com
midtier.net
mrci.bz
multiaxamerica.com
muslimphilosophy.net
mx.bizcube.com
northcountrycatholic.org
ofmusic.com
oplag.net
os-4u.com
ossiningvac.org
pokapoka.us
pooldesign.com
prestigecollision.ca
prototechnologies.ca
psionics.net
qualityenv.com
radialtech.com
reachpc.com
rutledge.com
s104320470.onlinehome.us
s107372500.onlinehome.us
s107846083.onlinehome.us
s131900522.onlinehome.us
s143419439.onlinehome.us
s15246722.onlinehome-server.com
s15252039.onlinehome-server.com
s15252529.onlinehome-server.com
s177400835.onlinehome.us
s182323787.onlinehome.us
s195802128.onlinehome.us
s198479832.onlinehome.us
server5.outofcontrol.ca
shoyer.com
smalleyonline.com
spelmanresearch.com
tdaviscpa.com
terinex.com
thehermanfile.com
themasterscc.com
thetp.com
u15156420.onlinehome-server.com
u15157659.onlinehome-server.com
u15166917.onlinehome-server.com
u15171325.onlinehome-server.com
u15176797.onlinehome-server.com
u15181395.onlinehome-server.com
u15181578.onlinehome-server.com
u15186869.onlinehome-server.com
u15207868.onlinehome-server.com
u15207943.onlinehome-server.com
u15208032.onlinehome-server.com
u15223111.onlinehome-server.com
u15253444.onlinehome-server.com
u15253734.onlinehome-server.com
u15253819.onlinehome-server.com
u15259758.onlinehome-server.com
veloc-it.net
vis-info.com
weskennedy.com
wisetooth.com
wontonhouse.com
domains using this as mailserver under another name
aircraftmailer.com
al-qaedah.net
badasshouse.com
coppergifts.com
entrustsupport.com
ericslezak.com
gobanzai.com
goldmountainhosting.com
gorgones.gr
incbox.com
jobsbay.com
krtconsulting.com
makridis.net.gr
netreliant.com
roosterstation.com
sailzen.com
srs.perfora.net
sygrino.gr
thoughtmentor.com
trafoneon.com
trafoneonbg.com
webwise.gr
wint.gr
used as nameserver but missing in zone
diosesluzyamor.com
diosesluzyamor.net
diosesluzyamor.org
lassagradasescrituras.net
lassagradasescrituras.org