go
pdns4.ultradns.org has one IP number , which also has a corresponding reverse pointer. dns4.imninc.com, dns6.tessco.com, u-ns4.oracle.com, dns04.m88asia.com, dns01.mansion55.com and at least one other host point to the same IP. 3m.dk, a9.com, tix.ch, adp.nl, 9am.com and at least 100 other hosts use this as a nameserver. ultradns.org is a domain controlled by six nameservers. All of them are on different IP networks. Incoming mail for ultradns.org is handled by two mailservers at neustar.com. They are on different IP networks. ultradns.org has one IP number. pdns4.ultradns.org is hosted on a server in United States.

pdns4.ultradns.org
a records
 
+ 199.7.69.1 199.7.69.0/24 AS12008 -
+ --- -

ultradns.org
a records
 
+ 204.74.99.100 204.74.99.0/24 AS12008  
+ ---  
ns-soa records
 
+   AS?  
+ ---  
ns records
pdns1.ultradns.net
+ 204.74.108.1 204.74.108.0/24 AS12008 -
+ --- -
pdns2.ultradns.net
+ 204.74.109.1 204.74.109.0/24 AS12008 -
pdns3.ultradns.org
+ 199.7.68.1 199.7.68.0/24 AS12008 -
pdns4.ultradns.org
+ 199.7.69.1 199.7.69.0/24 AS12008 -
pdns5.ultradns.info
+ 204.74.114.1 204.74.114.0/24 AS12008 -
pdns6.ultradns.co.uk
+ 204.74.115.1 204.74.115.0/24 AS12008 -
mx records
ns6.neustar.com
+ 156.154.16.88 156.154.16.0/22 AS7786 -
+ --- -
ns7.neustar.com
+ 156.154.24.88 156.154.24.0/21 AS7786 -
ip numbers of host
199.7.69.1
ptrs of ip numbers
pdns4.ultradns.org
ip numbers using ptr to this host
199.7.69.1
199.7.69.243
199.7.69.244
199.7.69.245
199.7.69.251
hostnames sharing ip with a-records
dns01.mansion55.com
dns04.m88asia.com
dns04.mansion88.com
dns4.imninc.com
dns6.tessco.com
u-ns4.oracle.com
domains using this as nameserver
1-18-08.com
11.69.80.in-addr.arpa
128.65.198.65.in-addr.arpa
13.69.80.in-addr.arpa
142.197.65.in-addr.arpa
145.16.193.in-addr.arpa
146.68.217.in-addr.arpa
148.68.217.in-addr.arpa
156.68.217.in-addr.arpa
164.171.207.in-addr.arpa
180096hotel.com
199.133.198.in-addr.arpa
1stfederalvaldosta.com
1stopatlanticcity.com
2.119.85.in-addr.arpa
20.69.217.in-addr.arpa
215.79.217.in-addr.arpa
216.79.217.in-addr.arpa
217.79.217.in-addr.arpa
21magic.com
220.79.217.in-addr.arpa
229.182.216.in-addr.arpa
230.182.216.in-addr.arpa
234.14.204.in-addr.arpa
24hpoker.com
24livegay.com
2betdsi.com
32.16.206.in-addr.arpa
32nd.tv
32vegas.com
3cdigital.com
3dactionplanet.com
3dgamers.com
3m.com.au
3m.dk
3w-art.com
48.42.194.in-addr.arpa
53.173.209.in-addr.arpa
59.100.192.in-addr.arpa
60.173.209.in-addr.arpa
64-127.5.194.66.in-addr.arpa
64.7.199.in-addr.arpa
69-28-191.ifilm.com
6pm.com
77.166.in-addr.arpa
8.69.80.in-addr.arpa
888-poker.com
888.com
9am.com
a1wireless.com
a2zdevelopment.com
a9.com
aacreditunion.org
abcdistributing.com
abcdistributing.net
abctournament.com
abe.com
abebooks.com
abebooks.fr
aboutamica.com
aboutwatches.com
abrodev.co.uk
ac2hq.com
acadia-pharm.com
access-company.com
accesshollywood.com
acctp.com
acctp.org
acnielsen.ca
acnielsen.com
actecash.com
activityinformation.com
adameve.com
adexpedia.com
adform.net
adp.nl
ads-serve.com
adsdk.com
adultadworld.com
adultfriendfinder.com
adults55pluscommunities.biz
advancedsearchbar.com
advantagedatabase.com
advent.com
adventbirmingham.com
adventbirmingham.org
adventeurope.com
advertising.com
advisorclient.com
advisormart.com
advsol.com
adweek.com
ae.ge.com
aetn.com
aetvn.com
aexpedia.com
affiliatedirectoryinfo.com
afterellen.com
afterelton.com
agent-castillo.com
agent-innovation.com
agent-innovations.com
agentbusa.com
cibc.ca
cibc.com
difc.ae
diginsite.com
digitalinsight.com
emailsrvr.com
melochemonnex.com
mxlogicmx.net
nbty.com
neustarultraservices.biz
npac.com
secondary.com
spamarrest.com
symantec.com
symantecmail.com
symantecmail.net
tix.ch
domains using this as nameserver under another name
242.8.204.in-addr.arpa
accessorysales.com
acuoptimist.com
architectsjournal.co.uk
batesstudent.com
boschsecuritynews.us
buchtelite.com
centerforfinanciallearning.com
ci.atlantic-beach.fl.us
clubnewsmaker.net
confmailsite.com
dailynorthwestern.com
elvaq.com
eyeconomy.com
imakenews.com
imakenews.net
imakenews.org
imn-loyaltydriver.com
imn-loyaltydriver.org
imninc.com
imnloyaltydriver.com
imnloyaltydriver.org
imnpartypulse.com
increase-sperm-count.com
internetviz-newsletters.com
isellthings.com
lavozdeanza.com
m88cs.com
mailer1.net
mansion-88.com
mansion456.com
mansion55.com
mansion789.com
mansion811.com
mansion833.com
mansion855.com
mansion866.com
mansion877.com
mansion88.com
metlifelegislativenews.com
oracle.com
pulpfusion1.com
revcube.net
smarternewsletter.com
smarternewsletters.com
talonmarks.com
tessco.com
tesscotechnologies.com
thewirelessjournal.com
think.com
thinkquest.org
usforacle.com
utahstatesman.com
wirelesssolutions.com
wkuherald.com
yourtotalsource.com
yourwirelesssource.com
used as nameserver but missing in parent delegation
145.16.193.in-addr.arpa
164.171.207.in-addr.arpa
199.133.198.in-addr.arpa
229.182.216.in-addr.arpa
24hpoker.com
2betdsi.com
3m.com.au
3m.dk
59.100.192.in-addr.arpa
64-127.5.194.66.in-addr.arpa
6pm.com
9am.com
a1wireless.com
abcdistributing.com
abcdistributing.net
abctournament.com
abe.com
aboutamica.com
access-company.com
acnielsen.com
adp.nl
adultadworld.com
adults55pluscommunities.biz
adventbirmingham.com
adventbirmingham.org
advisorclient.com
advsol.com
agentbusa.com
aggregateknowledge.com
aguaatsanderson.com
alabamaaviator.com
albertamoosehunts.com
alienware.co.uk
alienware.com
alienwareplayerslounge.com
allaboutamica.com
allsportsallthetime.com
amazon.co.jp
amazon.co.uk
amazon.com
americanworldtravel.com
amicaauto.biz
amicaautoinsurance.info
amicacarinsurance.biz
amicalifeinsurance.biz
amicalifesucks.biz
amicalifesucks.com
amicalifesucks.info
amicamutual.biz
amicamutualinsurance.biz
amicaonline.info
amicapropertyandcasualtyinsurancecompany.biz
amicasucks.biz
amicasucks.info
amor.com
animorph.com
antimicrobic.com
artistrising.com
assoc-amazon.co.uk
assoc-amazon.jp
atlanticcityfirst.com
augusta-chamber.org
auto.com
avery.com
averyprintshop.fr
bananarepublic.com
bango.com
bankcardusa.com
bankcardusa.us
bankcardusams.org
bankofneworleans.net
barakacasino.com
bayviewtechnology.com
bcbsil.com
bcbstx.com
beatthescore.com
betfair.co.uk
betfair.com
betgameday.com
betthegold.com
betus.com
bigbuilderonline.com
blow-molding.co.uk
bop1889.com
bowflex.com
bowhuntingiowa.com
bowl.com
broadstreetcommunitynewspapers.biz
brookpm.co.uk
builderonline.com
builderonlinejobs.org
bydeluxe.com
calendar.com
canadianbearhunts.com
caribbeangold.com
casinokingdom.com
ccpgames.com
ccs-france.com
chemungcanal.com
chp.com
christianity.net
christianitytoday.com
ci.bellaire.tx.us
cibc-global.com
cibc.ca
cibc.com
clarica.ca
classesusa.com
clear-time.co.uk
clifthotel.com
clubnewsmaker.net
collegebound.net
compupay.com
countryhomeproducts.com
melochemonnex.com
nbty.com
secondary.com
used as nameserver but missing in zone
a2zdevelopment.com
budsinc.com
cdmdata.com