A total of 10 sites are hosted on 198.41.209.143.
Here are the first 5 as they would appear when searched for:
reddit.com/user/skydart
(null)
reddit.com/user/jmwpc
(null)
reddit.com/user/tokepuppet
(null)
reddit.com/user/AutoModerator
(null)
reddit.com/user/moocow808
(null)
...and the list of the remaining 5:
reddit.com/user/SonicRoof
reddit.com/user/need_cake
reddit.com/user/imavape
reddit.com/user/soulman121
reddit.com/user/spotlightmax