go
a.ns.robtex.com has one IP number , which also has a corresponding reverse pointer. c.ns.robtex.com, e.ns.robtex.com and nsa.q.robtex.com point to the same IP. mnw.com, bz64.com and satmaran.com use this as a nameserver. ns.robtex.com has one IP number. a.ns.robtex.com is hosted on a server in Sweden.

a.ns.robtex.com
a records
 
+ 194.71.0.53 194.71.0.0/24 AS48285 -
+ --- -

ns.robtex.com
a records
 
+ 217.75.109.220 217.75.104.0/21 AS39369  
+ ---  
ip numbers of host
194.71.0.53
ptrs of ip numbers
a.ns.robtex.com
ip numbers using ptr to this host
194.71.0.53
hostnames sharing ip with a-records
c.ns.robtex.com
e.ns.robtex.com
nsa.q.robtex.com
domains using this as nameserver
bz64.com
mnw.com
satmaran.com
domains using this as nameserver under another name
aaaaaughibbrgubugbugrguburgle.com
agaureps.net
all-info-about.com
arja.se
borgall.com
bud.nu
cbaio.com
dreambay.sl
flickor.com
free-blog-gadgets.com
free-blog-tools.com
free-blog-widgets.com
free-web-things.com
freepicblog.com
lemonfreemusic.com
link-gadget.com
mnw.com
nntprelay.com
npron.com
nr.nu
piratradio.org
products-for-men.com
products-for-women.com
raiyah.com
rbls.org
robtex.asia
robtex.biz
robtex.es
robtex.hk
robtex.info
robtex.net
robtex.org
robtex.se
robtex.us
surgubbe.org
tagson.me
tagson.net
tagson.us
telefoner.nu
vikingserver.com
wapj.net
nameservers missing in parent delegation
xns.q.robtex.com
used as nameserver but missing in parent delegation
mnw.com