Good thin that the ISPs in my country didn't think of blocking some ports or creating firewalls to limit their customers' activities (the government don't even bother on checking out bitcoin lol). The only problem with the ISPs here in the Philippines is bandwidth capping and slow up/down speeds. I don't know if you can sue AT&T for doing such actions, maybe read the tos in getting their contract?
Change your ISP.
Problem solved

A simple solution, but a wise one.
