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mx.tv1.at has one IP number , but the reverse is s15210098.onlinehome-server.info. bikerfestl.at, bikerfestl.com, bikerfestl.net, filmforumlinz.at, www.bikerfestl.at and at least four other hosts point to the same IP. tv1.at is a domain controlled by two nameservers at 1und1.de. They are on different IP networks. Incoming mail for tv1.at is handled by three mailservers having a total of five IP numbers. There are four duplicated IP numbers. Some of them are on the same IP network. tv1.at has one IP number. mx.tv1.at is hosted on a server in Germany even though the hostname implies Austria.

mx.tv1.at
a records
 
+ 87.106.14.36 87.106.0.0/16 AS8560 s15210098.onlinehome-server.info
+ --- s15210098.onlinehome-server.info

*.tv1.at
a records
 
+ 212.227.97.74 212.227.0.0/16 AS8560  
+ ---  

tv1.at
a records
 
+ 212.227.97.74 212.227.0.0/16 AS8560  
+ ---  
ns-soa records
ns55.1und1.de
+ 195.20.224.156 195.20.224.0/19 AS8560 -
+ --- -
ns records
ns55.1und1.de
+ 195.20.224.156 195.20.224.0/19 AS8560 -
+ --- -
ns56.1und1.de
+ 212.227.123.77 212.227.0.0/16 AS8560 -
mx records
mx00.kundenserver.de
+ 212.227.15.134 212.227.0.0/16 AS8560 mx-b.kundenserver.de
+ --- mx-b.kundenserver.de
+ 212.227.15.150 212.227.0.0/16 AS8560 mx-b.kundenserver.de
+ 212.227.15.169 212.227.0.0/16 AS8560 mx-b.kundenserver.de
+ 212.227.15.186 212.227.0.0/16 AS8560 mx-b.kundenserver.de
mx01.kundenserver.de
+ 212.227.15.134 212.227.0.0/16 AS8560 mx-b.kundenserver.de
+ 212.227.15.150 212.227.0.0/16 AS8560 mx-b.kundenserver.de
+ 212.227.15.169 212.227.0.0/16 AS8560 mx-b.kundenserver.de
+ 212.227.15.186 212.227.0.0/16 AS8560 mx-b.kundenserver.de
s158802624.online.de
+ 87.106.14.36 87.106.0.0/16 AS8560 s15210098.onlinehome-server.info
+ --- s15210098.onlinehome-server.info
ip numbers of host
87.106.14.36
ptrs of ip numbers
s15210098.onlinehome-server.info
hostnames sharing ip with a-records
*.bikerfestl.at
bikerfestl.at
bikerfestl.com
bikerfestl.net
filmforumlinz.at
mail.oktoberfest-babsi.com
oktoberfest-babsi.com
s15210098.onlinehome-server.info
s158802624.online.de
www.bikerfestl.at
domains using this as mailserver under another name
bikerfestl.at
bikerfestl.com
bikerfestl.net
oktoberfest-babsi.com
s15210098.onlinehome-server.info
tv1.at