go
dex166.exmasters.com has one IP number , which also has a corresponding reverse pointer. freshwap.com, freshwap.net, www.freshwap.com, vs025.yuvutu.com, www.freshwap.net and at least one other host point to the same IP. hotbuyit.com use this as a mailserver. exmasters.com is a domain controlled by two nameservers at exmasters.com themselves. They are on different IP networks. Incoming mail for exmasters.com is handled by two mailservers on the same IP network. exmasters.com has one IP number. dex166.exmasters.com is hosted on a server in Czech Republic.

dex166.exmasters.com
a records
 
+ 89.185.228.166 89.185.224.0/19 AS24971 -
+ --- -

*.exmasters.com
a records
 
+ 209.68.55.83 209.68.0.0/18 AS7859  
+ ---  

exmasters.com
a records
 
+ 209.68.55.83 209.68.0.0/18 AS7859  
+ ---  
ns-soa records
ns1.exmasters.com
+ 81.31.38.10 81.31.32.0/20 AS24971 ex0.exmasters.com
+ --- ex0.exmasters.com
ns records
ns1.exmasters.com
+ 81.31.38.10 81.31.32.0/20 AS24971 ex0.exmasters.com
+ --- ex0.exmasters.com
ns2.exmasters.com
+ 213.191.127.162 213.191.96.0/19 AS29208 dns2.exmasters.com
+ --- dns2.exmasters.com
mx records
dex2.exmasters.com
+ 81.31.38.20 81.31.32.0/20 AS24971 -
+ --- -
fa0.fastinternet.cz
+ 81.31.42.10 81.31.32.0/20 AS24971 -
ip numbers of host
89.185.228.166
ptrs of ip numbers
dex166.exmasters.com
ip numbers using ptr to this host
89.185.228.166
hostnames sharing ip with a-records
freshwap.com
freshwap.net
mail.freshwap.com
vs025.yuvutu.com
www.freshwap.com
www.freshwap.net
domains using this as mailserver
hotbuyit.com
domains using this as mailserver under another name
freshwap.com
freshwap.net