go
ns.cernet.net has one IP number , which also has a corresponding reverse pointer. ns.edu.cn and cns.cernet.net point to the same IP. cn, dtp-lc.com, tzxhzx.net, ltagri.net, gsxhfp.net and at least four other hosts use this as a nameserver. cernet.net is delegated to two nameservers, however one extra nameserver is listed in the zone. All of them are on the same IP network. Incoming mail for cernet.net is handled by one mailserver at nic.edu.cn. cernet.net has one IP number. ns.cernet.net is hosted on a server in China.

ns.cernet.net
a records
 
+ 202.112.0.44 202.112.0.0/24 AS4538 -
+ --- -
+ --- ns.edu.cn

cernet.net
a records
 
+ 202.112.0.46 202.112.0.0/24 AS4538  
+ ---  
ns-soa records
ns2.net.edu.cn
+ 202.112.0.33 202.112.0.0/24 AS4538 -
+ --- -
+ --- ns2.cernet.net
ns records
dns.edu.cn
+ 202.112.0.35 202.112.0.0/24 AS4538 -
+ --- -
dns2.edu.cn
+ 202.112.0.13 202.112.0.0/24 AS4538 -
ns2.net.edu.cn
+ 202.112.0.33 202.112.0.0/24 AS4538 -
+ --- ns2.cernet.net
mx records
sea05.nic.edu.cn
+ 202.112.0.45 202.112.0.0/24 AS4538 -
+ --- -
ip numbers of host
202.112.0.44
ptrs of ip numbers
ns.cernet.net
ns.edu.cn
ip numbers using ptr to this host
202.112.0.44
hostnames sharing ip with a-records
cns.cernet.net
ns.edu.cn
domains using this as nameserver
cn
dtp-lc.com
gsbyjs.com.cn
gsxhfp.net
ihousee.com
ltagri.net
peonyrockii.com
tengsheng-group.com
tzxhzx.net
domains using this as nameserver under another name
ac.cn
ah.cn
bj.cn
com.cn
cq.cn
fj.cn
gd.cn
gov.cn
gs.cn
gx.cn
gz.cn
ha.cn
hb.cn
he.cn
hi.cn
hk.cn
hl.cn
hn.cn
jl.cn
js.cn
jx.cn
ln.cn
mo.cn
net.cn
nm.cn
nx.cn
org.cn
qh.cn
sc.cn
sd.cn
sh.cn
sn.cn
sx.cn
tj.cn
tw.cn
xj.cn
xz.cn
yn.cn
zj.cn
nameservers missing in parent delegation
dns2.edu.cn
used as nameserver but missing in parent delegation
dtp-lc.com
gsbyjs.com.cn
gsxhfp.net
ihousee.com
ltagri.net
peonyrockii.com
tengsheng-group.com
tzxhzx.net