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isna.ir is delegated to two nameservers, however two extra nameservers are listed in the zone. There are two duplicated IP numbers. Some of them are on the same IP network. Incoming mail for isna.ir is handled by one mailserver at isna.ir themselves. isna.ir has one IP number , but the reverse is 64-130-220-65.static-ip.ravand.ca. 2a.isna.ir point to the same IP. furl.net, aiany.org, pxliu.com, buyelo.com, infuse.org and at least 27 other hosts share nameservers with this domain. 2a.isna.ir and mail.isna.ir are subdomains to this hostname. isna.ir is hosted on a server in Canada even though the hostname implies Iran.

isna.ir
a records
 
+ 64.130.220.65 64.130.220.0/24 AS23136 64-130-220-65.static-ip.ravand.ca
+ --- 64-130-220-65.static-ip.ravand.ca
ns-soa records
no-dyn-updates.san.yahoo.com
+ 127.0.0.1 AS? localhost
+ --- localhost
ns records
yns1.yahoo.com
+ 98.136.43.32 98.136.40.0/21 AS36752 -
+ --- -
yns2.yahoo.com
+ 66.196.84.168 66.196.80.0/21 AS14779 -
ns8.san.yahoo.com
+ 98.136.43.32 98.136.40.0/21 AS36752 yns1.yahoo.com
+ --- yns1.yahoo.com
ns9.san.yahoo.com
+ 66.196.84.168 66.196.80.0/21 AS14779 yns2.yahoo.com
+ --- yns2.yahoo.com
mx records
mail.isna.ir
+ 64.130.222.25 64.130.222.0/24 AS23136 mail.salammirhossein.com
+ --- mail.salammirhossein.com

ir
ns-soa records
ns1.nic.ir
+ 194.225.70.83 194.225.64.0/19 AS6736  
+ ---  
ns records
auth02.ns.uu.net
+ 198.6.1.82 198.6.0.0/16 AS701 -
+ --- -
a.nic.ir
+ 193.189.123.2 193.189.123.0/24 AS39200 -
ns1.nic.ir
+ 194.225.70.83 194.225.64.0/19 AS6736  
+ ---  
ns5.univie.ac.at
+ 193.171.255.77 193.170.0.0/15 AS1853 -
+ --- -
ip numbers of host
64.130.220.65
ptrs of ip numbers
64-130-220-65.static-ip.ravand.ca
hostnames sharing ip with a-records
*.isna.ir
2a.isna.ir
nameservers used by this domain
ns8.san.yahoo.com
ns9.san.yahoo.com
yns1.yahoo.com
yns2.yahoo.com
domains sharing nameservers
aiany.org
alkitab.com
amideal.com
arubaaloe.com
bluenetconsulting.com
brandsplace.com
butterflykoi.com
buyelo.com
childrensrack.com
ciscool.com
computermendtor.com
cooneyconway.com
countryovens.com
easterseals-sepa.org
firstshare.com
furl.net
guidecappartners.com
herjavecgroup.com
infuse.org
keskinen.org
likunhe.net
millenniumcrystal.com
money4data.com
newafricamovement.org
osmonics.biz
posworld.com
pxliu.com
tpohara.com
unmgroup.com
warrantynet.com
workforcescheduler.com
workforcescheduler.net
ip numbers of nameservers
66.196.84.168
98.136.43.32
reverse names of the nameservers
yns1.yahoo.com
yns2.yahoo.com
other names of the nameservers
*.inteliment.com
financecredit.co.cc
futurens1.serveftp.com
futurens2.serveftp.com
generaconline.net
greenearthcreations.com
guesslighting.net
industrialwriting.com
littleladiesdayout.com
msdaviskindergarten.com
ns1.drangon.org
usmetis.com
walnut6.com
womenstorehouse.com
ybarractr.com
yns1.vip.sp1.yahoo.com
domains sharing nameservers under another name
futurematic.biz
zju88.org
mailservers used by this domain
mail.isna.ir
ip numbers of mailservers
64.130.222.25
reverse names of the mailservers
mail.salammirhossein.com
other names of the mailservers
*.130.222.25.salammirhossein.com
*.222.25.salammirhossein.com
*.25.salammirhossein.com
*.rayemelat.com
*.salammirhossein.com
130.222.25.salammirhossein.com
222.25.salammirhossein.com
25.salammirhossein.com
64.130.222.25.salammirhossein.com
mail.salammirhossein.com
ns1.rayemelat.ir
ns1.salammirhossein.ir
ns2.salammirhossein.ir
rayemelat.com
rayemelat.ir
salammirhossein.com
salammirhossein.ir
www.rayemelat.com
www.rayemelat.ir
www.salammirhossein.com
www.salammirhossein.ir
domains sharing mailservers under another name
mail.salammirhossein.com
subdomains
*.isna.ir
2a.isna.ir
mail.isna.ir
nameservers missing in parent delegation
ns8.san.yahoo.com
ns9.san.yahoo.com