go
mx622.now.net.cn has one IP number , which also has a corresponding reverse pointer. pop.cksn.net, pop.8pcb.com, mail.zkgz.com, mail.pycy.net, mx.idcicp.com and at least 30 other hosts cnames to this hostname. mail.invi.mobi, mail.yolycom.com, mail.jjw-led.com, mail.virgame.com, mail.chanmeiyi.com and at least three other hosts point to the same IP. fair-club.com use this as a nameserver. ie21.cn, ovok.net, k155.net, yiiu.net, fhzw.net and at least 100 other hosts use this as a mailserver. now.net.cn is a domain controlled by three nameservers. All of them are on different IP networks. Incoming mail for now.net.cn is handled by one mailserver at now.net.cn themselves. now.net.cn has one IP number. mx622.now.net.cn is hosted on a server in Hong Kong even though the hostname implies China.

mx622.now.net.cn
a records
 
+ 203.169.164.20 203.169.160.0/20 AS4645 -
+ --- -

now.net.cn
a records
 
+ 119.146.222.153 119.144.0.0/14 AS4134  
+ ---  
ns-soa records
ns5000.01isp.com
+ 210.22.14.122 210.22.12.0/22 AS17623 sym.gdsz.cncnet.net
+ --- sym.gdsz.cncnet.net
ns records
ns5000.01isp.com
+ 210.22.14.122 210.22.12.0/22 AS17623 sym.gdsz.cncnet.net
+ --- sym.gdsz.cncnet.net
ns5001.01isp.cn
+ 119.146.222.154 119.144.0.0/14 AS4134  
+ ---  
ns5002.01isp.net
+ 203.169.164.18 203.169.160.0/20 AS4645 vp164018.hk.uac65.hknet.com
+ --- vp164018.hk.uac65.hknet.com
mx records
mx621.now.net.cn
+ 202.105.179.53 202.105.128.0/17 AS4134  
+ ---  
ip numbers of host
203.169.164.20
ptrs of ip numbers
mx622.now.net.cn
ip numbers using ptr to this host
203.169.164.20
59.188.7.42
hostnames sharing ip with a-records
cdn622.todayisp.net
mail.chanmeiyi.com
mail.invi.mobi
mail.jjw-led.com
mail.nodensgroup.com
mail.virgame.com
mail.yolycom.com
vp164020.hk.uac65.hknet.com
hostnames pointing here by cname
mail.billionharvest.cn
mail.biosecuritytec.com
mail.chhyt.com
mail.ejare.net
mail.giftsexport.com
mail.goldensaws.com
mail.ifx-markets.org
mail.jasperele.com
mail.jjw-ic.com
mail.jjw-pcb.com
mail.jumpiter.com
mail.jwemblem.com
mail.kept-ind.com
mail.lukeke.com
mail.mktcam.com
mail.modernway.com.cn
mail.nj126.com
mail.primestarhk.com
mail.pycy.net
mail.sausung.com
mail.ssuper-ic.com
mail.trony.com
mail.usbbroadway.com
mail.wgdwj.com
mail.xyh-ic.com
mail.zkgz.com
membersalon.com
mx.idcicp.com
pop.8pcb.com
pop.artarth.com
pop.cksn.net
pop.mailmkt.cn
pop.shenghuangcn.com
pop.zhmychina.com
webmail.sojoytech.com
domains using this as nameserver
fair-club.com
domains using this as mailserver
100windows.net
168yld.com
51727.net
520cisco.com
agoods.com
aiglobe.com
allbbs.com
amishow.com
aoyueav.com
autohid.com
b2b2b.net
betterlife-mo.net
bfcoating.com
capitalasia.com
cemiq.com
chinaprospect.net
chinatours.net
chinego.com
cisumusic.net
citysoho.com
claptak.net
cqyyfc.com
eagleway.net
eione-digital.com
ejobregion.net
equaldeal.com
etexpo.com
eucn.net
eurocina.net
evervictory.com
fanadacn.com
fei-art.net
feichanghao.net
fhzw.net
flyhu.net
fuel-dispenser.com
gameim.com
gffountain.com
gogoca.com
greenews.net
haifaco.com
hrgroups.com
hrmacau.net
hui-qiang.com
hystar.net
i-love-y.net
i-now.com
ie21.cn
imprintking.com
innoteqelec.com
jatala.com
jiuyehb.com
joycolor.com
k155.net
kexianpcb.com
kingalloy.net
konnoc.net
kyiveels.com
lansense.net
laser-hl.com
lensstation.com
lida-trade-de.com
longjun.net
lyonfund.net
minmaxenergy.com
mistsoft.net
modcase-tec.com
mtbattery.com
newpartyworld.com
nikeseason.net
omooo.net
oneonone-online.net
openany.net
ovok.net
pasia.com
puissant-cn.com
rema-expo.com
roame.net
satlive.net
sdonli.com
shinron.com
songyangmeter.com
start-hk.net
start-mo.net
strategy-empire.com
success-place.net
sunnyhainan.com
sunnysanya.com
szfocus.com
szrongyu.com
szwww.net
taidea.com
takechance.net
tonen.net
trend-make.com
uenu.ac.cn
umeox.com
umesource.com
uni-mall.net
virgame.com
wackstudio.com
wahmau.net
webcareer-hk.net
wk4you.net
work-for-you.net
xh3333.net
xn--54q391ceq0b.net
xn--grz22hpwc.com
xn--ior48e4tc.net
xn--tmv997j.net
xn--vhqqb03cc7jsofa3472bzs7ajll657a.net
yentenltd.com
yiiu.net
yolycom.com
yuan-jian.com
yueoo.net
yunjiang.net
zgpiao.net
zijingbaby.com
zongmi.net
domains using this as mailserver under another name
chanmeiyi.com
jjw-led.com
mestechs.net
nodensgroup.com
utlworld.com