go
i.ytimg.com has one IP number , via cname to ytimg.l.google.com , but the reverse is vw-in-f118.1e100.net. p6058.com, i1.ytimg.com, i4.ytimg.com, i2.ytimg.com, mw2.google.com and at least 27 other hosts point to the same IP. ytimg.com is a domain controlled by four nameservers at google.com. All of them are on different IP networks. i.ytimg.com is hosted on a server in United States.

i.ytimg.com
cname records
ytimg.l.google.com
+ 74.125.113.118 74.125.112.0/23 AS15169 vw-in-f118.1e100.net
+ --- vw-in-f118.1e100.net

ytimg.com
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 -
ip numbers of host
74.125.113.118
ptrs of ip numbers
vw-in-f118.1e100.net
hostnames sharing ip with a-records
*.friendconnect.gmodules.com
029ltr44el130t7ljcdfr81q2majkv2co.friendconnect.gmodules.com
2juj27q3o.friendconnect.gmodules.com
api.feedburner.com
feedproxy.google.com
feeds.feedburner.com
friendconnect.gmodules.com
googleapps.com
i1.ytimg.com
i2.ytimg.com
i4.ytimg.com
img.youtube.com
mc8tdi0ripmbpds25edoaupdulritrp6.friendconnect.gmodules.com
mw-medium.l.google.com
mw-small.l.google.com
mw1.google.com
mw2.google.com
p6058.com
p7rjrrl49ose4gob99eonlvp0drmce3d.friendconnect.gmodules.com
partners-test.blogger.com
r12juj27q3o.friendconnect.gmodules.com
r1rk9np76pcsfoeeklohkdzjuj27q30.friendconnect.gmodules.com
upload.youtube.com
voice.google.com
voice.l.google.com
vw-in-f118.1e100.net
wave.google.com
webdrive-client.l.google.com
www.project10tothe100.com
www10.google.com
www4.google.com
www4.l.google.com
yt-video-upload.l.google.com
cname
ytimg.l.google.com