go
ami.c.google.fr are subdomains to this hostname. google.fr is a domain controlled by four nameservers at google.com. All of them are on different IP networks. Incoming mail for google.fr is handled by four mailservers. All of them are on the same IP network. google.fr has three IP numbers. All of them are on different IP networks.

google.fr
a records
 
+ 74.125.77.104 74.125.76.0/23 AS15169  
+ ---  
+ 209.85.229.104 209.85.228.0/23 AS15169  
+ 216.239.59.104 216.239.58.0/23 AS15169  
ns-soa records
ns1.google.com
+ 216.239.32.10 216.239.32.0/24 AS15169 -
+ --- -
ns records
ns1.google.com
+ 216.239.32.10 216.239.32.0/24 AS15169 -
+ --- -
ns2.google.com
+ 216.239.34.10 216.239.34.0/24 AS15169 -
ns3.google.com
+ 216.239.36.10 216.239.36.0/24 AS15169 -
ns4.google.com
+ 216.239.38.10 216.239.38.0/24 AS15169 -
mx records
google.com.s9a1.psmtp.com
+ 74.125.148.10 74.125.148.0/24 AS26910 s9a1.psmtp.com
+ --- s9a1.psmtp.com
google.com.s9a2.psmtp.com
+ 74.125.148.11 74.125.148.0/24 AS26910 s9a2.psmtp.com
+ --- s9a2.psmtp.com
google.com.s9b1.psmtp.com
+ 74.125.148.13 74.125.148.0/24 AS26910 s9b1.psmtp.com
+ --- s9b1.psmtp.com
google.com.s9b2.psmtp.com
+ 74.125.148.14 74.125.148.0/24 AS26910 s9b2.psmtp.com
+ --- s9b2.psmtp.com
subdomains
ami.c.google.fr