go
alt1.toolbarqueries.l.google.com has one IP number , but the reverse is cpt01s01-in-f104.1e100.net. irspecs.com, www2.google.com, www3.google.com, hs-in-f104.google.com and cpt01s01-in-f104.1e100.net point to the same IP. toolbarqueries.l.google.com has six IP numbers. All of them are on the same IP network. alt1.toolbarqueries.l.google.com is hosted on a server in United States.

alt1.toolbarqueries.l.google.com
a records
 
+ 64.233.179.104 64.233.178.0/23 AS15169 cpt01s01-in-f104.1e100.net
+ --- cpt01s01-in-f104.1e100.net

toolbarqueries.l.google.com
a records
 
+ 74.125.159.99 74.125.158.0/23 AS15169  
+ ---  
+ 74.125.159.103 74.125.158.0/23 AS15169  
+ 74.125.159.104 74.125.158.0/23 AS15169  
+ 74.125.159.105 74.125.158.0/23 AS15169  
+ 74.125.159.106 74.125.158.0/23 AS15169  
+ 74.125.159.147 74.125.158.0/23 AS15169  
ip numbers of host
64.233.179.104
ptrs of ip numbers
cpt01s01-in-f104.1e100.net
hostnames sharing ip with a-records
cpt01s01-in-f104.1e100.net
hs-in-f104.google.com
irspecs.com
www2.google.com
www3.google.com