IP addresses for AOL

I have a couple of trackers that I use, Hitslink and Profileviewsplus. They both track about the same. I never really see who is coming to my page, just their location and IP address. I don't belong to any groups so the majority of my hits are friends or friends of friends. I have recently seen quite a few hits from someone (or several people?) who use(s) AOL. Problem with this is that it just gives the location as "US", no city/state. AND, so far each hit has had a different IP address. If someone uses AOL, can they have multiple IP addresses or is this several people looking at my page?? Thanks in advance