go
ns2.email.com.cn has one IP number. e.tv, b.tv, u.cn, f.tv, 7.cn and at least 100 other hosts use this as a nameserver. email.com.cn is a domain controlled by two nameservers at email.com.cn themselves. They are on different IP networks. Incoming mail for email.com.cn is handled by one mailserver also at email.com.cn. email.com.cn has one IP number. ns2.email.com.cn is hosted on a server in China.

ns2.email.com.cn
a records
 
+ 220.231.13.89 220.231.0.0/18 AS4837  
+ ---  

email.com.cn
a records
 
+ 61.156.40.101 61.156.0.0/16 AS4837  
+ ---  
ns-soa records
ns.email.com.cn
+ 61.156.40.99 61.156.0.0/16 AS4837  
+ ---  
ns records
ns.email.com.cn
+ 61.156.40.99 61.156.0.0/16 AS4837  
+ ---  
ns2.email.com.cn
+ 220.231.13.89 220.231.0.0/18 AS4837  
mx records
mx.email.com.cn
+ 220.231.13.88 220.231.0.0/18 AS4837  
+ ---  
ip numbers of host
220.231.13.89
domains using this as nameserver
3garmy.com
5doll.com
7.cn
adiii.net
airsino.com
audiochina.com
b.tv
baigeyuan.com
baiwan.com
beijingopera.com
beijingwawa.com
beirmei.com
beirxiang.com
blogspot.cn
blond.cn
bluesoft.com.cn
brut.cn
chaixu.com
chaoyangpark.com
chinacarpet.com
chinacashmere.com
chinadvd.com
chinago.com
chinal.com
chinames.com
chinaoils.com
chinaphotos.com
chinastamps.com
chinatea.com
chinavigator.com
chineseidol.com
cinet.com.cn
citiguide.net
com.tv
damei.com
dan.com.cn
darentang.com
data.com.cn
dinghua2000.com
e.tv
email.com.cn
exhibitioncenter.com
f.tv
feida.com
feiyunyang.com
fivedoll.com
fivelamb.com
flash.cn
go.cn
goldencup.com
hello.cn
hongriver.com
huaxivillage.com
huliantang.com
huolongyu.com
impulse.cn
jerry.cn
jinghai.com
jintian.com
kandaola.com
kantianxia.com
kesai.com
kingdeer.com
kookle.cn
latinsquar.com
leonisa.cn
liuhua.com
liuyanghe.com
luyuan.com
malanhua.com
maotai.com
min.com.cn
miout.com
miphone.cn
moat.cn
modelstar.com
motoday.com
net.tv
newsilkroad.com
newsilkroad.net
ngning.com
omigod.com
peacehotel.com
polyplaza.com
qol.cn
qos.cn
qqq.cn
redfund.com
rsside.com
sep18.com
sexy.cn
shaofei.com
shoupeng.com
sinonic.com
sky.cn
songvillage.com
speakenglish.com
tasun.com.cn
thaisty.com
turandot.com
tuzki.com
u.cn
virginia.cn
wangma.com
wet.cn
wikipoly.com
wikiss.com
wobile.com
xinghai.com
xn--h5qx5n0ym.com
xuchai.com
xuebao.com
yaxiya.com
yidongwang.com
yinyan.com
yuqiwang.com
yuquanshan.com
zhangxiaoquan.com
zhaozilong.com
ziguang.com
used as nameserver but missing in zone
chinames.com
info.tv