No bittorrent running (or even installed). Maybe some sort of chrome plugin that uses BT to distribute data? It seems unlikely to be BT if all the IPs are the same, too.
Actually, all the IPs are not the same... you just have small blocks of IPs that are the same. That's exactly what BitTorrent does.
Shut down everything that you have open and run a netstat, see if it's still like that. If it is then you may have a problem. Otherwise start reopening programs one at a time until you find the culprit.
Everytime I use BT, it has 1 IP per port...and actually I tend to set up my torrent programs to use 1 port so I don't have to open up a bunch in my firewall.
that's only the listening port. Once a client contacts the listening port the actual connection is established on a different port so that the listening port isn't tied up for other connections. Generally speaking.
Regardless, I suggested where to start troubleshooting. Take it or leave it.
Well, it looks like those IPs (at least the ones that I noticed repeat the most) belong to Level3, Akamai Technologies and Amazon. You probably have sites open that are pulling data/libraries/something else that are hosted by them. Akamai Technologies also hosts a lot of distributed content (apparently) such as software updates, virus scanner updates, etc.
Yes that is Icrontic's IP. As to why you're opening multiple connections... depending on your browser it's probably just a feature to speed up page loading. I believe Firefox calls it http pipelining. There's also HTTP keepalives which keep connections open between page loads to speed up response time and multiple other tricks that could be causing multiple connections to stay open. If you have the IC IRC page open that's probably also causing some of it.
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Shut down everything that you have open and run a netstat, see if it's still like that. If it is then you may have a problem. Otherwise start reopening programs one at a time until you find the culprit.
ed: plus they're all going to port 80.
Regardless, I suggested where to start troubleshooting. Take it or leave it.
(that's icrontic's IP, at least according to my interwibbles)