A total of 53 sites are hosted on 104.81.237.164.
Here are the first 5 as they would appear when searched for:
blogs.technet.com/b/tothesharepoint
(null)
blogs.technet.com/b/jhoward
(null)
blogs.technet.com/b/technetczsk
(null)
blogs.technet.com/b/microsoftlatam
(null)
blogs.technet.com/b/filecab
(null)
...and the list of the remaining 48:
blogs.technet.com/b/server-management
blogs.technet.com/b/canitpro
blogs.technet.com/b/windowsserver
blogs.technet.com/b/exchange
blogs.technet.com/b/keithmayer
blogs.technet.com/b/dpm
blogs.technet.com/b/microsoft_presse
blogs.technet.com/b/srd
blogs.technet.com/b/vm
blogs.technet.com/b/msrc
blogs.technet.com/b/yongrhee
blogs.technet.com/b/stefan_gossner
blogs.technet.com/b/teamdhcp
blogs.technet.com/b/serverandtools
blogs.technet.com/b/messaging_with_communications
blogs.technet.com/b/microsoft_blog
blogs.technet.com/b/josebda
blogs.technet.com/b/stanislas
blogs.technet.com/b/bpj
blogs.technet.com/b/microsoft_corporate_disaster_response_blog
blogs.technet.com/b/configmgrteam
blogs.technet.com/b/heyscriptingguy
blogs.technet.com/b/networking
blogs.technet.com/b/microsoft_on_the_issues
blogs.technet.com/b/smallbusiness
blogs.technet.com/b/mspfe
blogs.technet.com/b/rrasblog
blogs.technet.com/b/odsupport
blogs.technet.com/b/projectsiena
blogs.technet.com/b/lystavlen
blogs.technet.com/b/office_sustained_engineering
blogs.technet.com/b/markrussinovich
blogs.technet.com/b/isv_team
blogs.technet.com/b/danstolts
blogs.technet.com/b/configurationmgr
blogs.technet.com/b/bizspark_featured_startups
blogs.technet.com/b/uktechnet
blogs.technet.com/b/jpieblog
blogs.technet.com/b/kevinremde
blogs.technet.com/b/aviraj
blogs.technet.com/b/askds
blogs.technet.com/b/askcore
blogs.technet.com/b/asiasupp
blogs.technet.com/b/sbs
blogs.technet.com/b/sysinternals
blogs.technet.com/b/yungchou
blogs.technet.com/b/hub
blogs.technet.com/b/microsoftupblog