Views from both Bayonet Point and Santa Clara come under paloaltonetworks if you look at the Network Domain dimension, and from Columbus under amazonaws. It may be the Amazon Bing Bot mentioned at tastyplacement.com/how-to-recognize-the-indeed-com-robot-and-other-unwanted-visitors
Views from Irvine seem to always have a facebook referral path. I was wondering whether they have anything to do with DNS brokerage located there, but I have no idea.