go
ws4.15x.net has one IP number. 15x.net is a domain controlled by two nameservers at 15x.net themselves. They are on the same IP network. Incoming mail for 15x.net is handled by one mailserver also at 15x.net. 15x.net has one IP number. ws4.15x.net is hosted on a server in United States.

ws4.15x.net
a records
 
+ 66.199.187.180 66.199.186.0/23 AS13768  
+ ---  

15x.net
a records
 
+ 216.187.103.169 216.187.96.0/21 AS13768  
+ ---  
ns-soa records
ns1.15x.net
+ 66.199.187.170 66.199.186.0/23 AS13768 -
+ --- -
ns records
ns1.15x.net
+ 66.199.187.170 66.199.186.0/23 AS13768 -
+ --- -
ns2.15x.net
+ 66.199.187.171 66.199.186.0/23 AS13768 -
mx records
mx1.15x.net
+ 216.187.103.165 216.187.96.0/21 AS13768  
+ ---  
ip numbers of host
66.199.187.180