go
ns1.open.by has one IP number , but the reverse is a.open.by. a.open.by, admin.open.by and mail.greenexpo.by point to the same IP. by, kp.by, te.by, 3s.by, tp.by and at least 100 other hosts use this as a nameserver. open.by is a domain controlled by four nameservers. Two of them are on the same IP network. Incoming mail for open.by is handled by one mailserver at open.by themselves. open.by has one IP number. ns1.open.by is hosted on a server in Belarus.

ns1.open.by
a records
 
+ 193.232.92.1 193.232.92.0/24 AS12406 a.open.by
+ --- a.open.by

open.by
a records
 
+ 193.232.92.14 193.232.92.0/24 AS12406  
+ ---  
ns-soa records
ns1.open.by
+ 193.232.92.1 193.232.92.0/24 AS12406 a.open.by
+ --- a.open.by
ns records
ns.spb.ru
+ 193.124.83.69 193.124.83.0/24 AS2118 -
+ --- -
ns.ru.net
+ 193.124.22.65 193.124.0.0/15 AS2118 -
ns1.open.by
+ 193.232.92.1 193.232.92.0/24 AS12406 a.open.by
+ --- a.open.by
ns2.open.by
+ 193.232.92.2 193.232.92.0/24 AS12406 d.open.by
+ --- d.open.by
mx records
i.open.by
+ 193.232.92.5 193.232.92.0/24 AS12406 -
+ --- -
ip numbers of host
193.232.92.1
ptrs of ip numbers
a.open.by
hostnames sharing ip with a-records
a.open.by
admin.open.by
mail.greenexpo.by
domains using this as nameserver
003.by
21vek.by
24shop.by
3s.by
777.by
92.232.193.in-addr.arpa
advertmedia.by
agro.by
agroleasing.by
all.by
altcom.by
architektura.by
artsalon.by
ats.by
auto.by
avto.by
azot.com.by
azs.by
b2b.by
beertrade.by
belal.by
belapan.by
belarus.by
belpc.by
belres.by
berlio.by
besserbel.by
bgpb.by
bigzz.by
bim.by
branding.by
bsopt.by
buk.by
by
cashflow.by
cctld.by
chat.by
cognac.by
com.by
compus.by
deltabank.by
deshevle.by
despina.by
diag.by
easypay.by
electromarket.by
elfik.by
elmarket.by
emico.by
etorg.by
export.by
fidnov.by
forauto.by
forum.by
fotki.by
foto.by
furnitop.by
gammatest.by
gjk.by
gka.by
icetrade.by
inita.by
inosatenergo.by
intim.by
job.by
jobs.by
jvl.by
kp.by
laima.by
laminar.by
lebortovo.by
lineage2.by
mail.by
mamashop.by
mas.by
maximus.by
megamag.by
meteoinfo.by
minsk.by
minzdrav.by
mirbt.by
mogilevtorg.by
myfish.by
nalog.by
nbrb.by
neroelectronics.by
net.by
netbroker.by
news.by
nicwto.by
nps.by
nsc.by
ntts.minsk.by
okds.by
open.by
ortogroup.by
otpusk.by
park.by
passat.by
phone.by
photoclub.by
prime-tass.by
rabota.by
regula.by
shop.by
sladosti.by
tars.by
te.by
threes.by
tld.by
touareg.by
tp.by
trud.by
uaz.by
uks.by
vasilieva.by
videochat.by
yulicom.by
ztnp.by
domains using this as mailserver under another name
a.open.by
easypay.by
greenexpo.by
mail.by
minsk.by
ok.minsk.by
rabota.by
scsi.gov.by
tld.by
used as nameserver but missing in parent delegation
bonus.by
used as nameserver but missing in zone
mamashop.by
maximus.by