go
83.dyn.rp80.se, 0.83.dyn.rp80.se, 2a.83.dyn.rp80.se, mail.smiletravel.nl, 83.ip.cust.port80.se and at least one other host point to 0.0.0.83.

*.0.83.dyn.rp80.se
a records
 
+ 0.0.0.83 AS?  
+ ---  

*.83.biz.sta.port80.se
a records
 
+ 0.0.0.83 AS?  
+ ---  

*.83.dyn.rp80.se
a records
 
+ 0.0.0.83 AS?  
+ ---  

*.83.ip.cust.port80.se
a records
 
+ 0.0.0.83 AS?  
+ ---  

.83.dyn.rp80.se
a records
 
+ 0.0.0.83 AS?  
+ ---  

0.83.dyn.rp80.se
a records
 
+ 0.0.0.83 AS?  
+ ---  

2a.83.dyn.rp80.se
a records
 
+ 0.0.0.83 AS?  
+ ---  

83.biz.sta.port80.se
a records
 
+ 0.0.0.83 AS?  
+ ---  

83.dyn.rp80.se
a records
 
+ 0.0.0.83 AS?  
+ ---  

83.ip.cust.port80.se
a records
 
+ 0.0.0.83 AS?  
+ ---  

mail.smiletravel.nl
a records
 
+ 0.0.0.83 AS?  
+ ---  
ip numbers of host
0.0.0.83
hostnames sharing ip with a-records
*.0.83.dyn.rp80.se
*.83.biz.sta.port80.se
*.83.dyn.rp80.se
*.83.ip.cust.port80.se
.83.dyn.rp80.se
0.83.dyn.rp80.se
2a.83.dyn.rp80.se
83.biz.sta.port80.se
83.dyn.rp80.se
83.ip.cust.port80.se
mail.smiletravel.nl
domains using this as mailserver
smiletravel.nl