ATT here as well starting to see the same other issues you guys are reporting. Was thinking maybe I had a virus so was trying to get to iobit and see if there was an update.. can't load their page etc.
Same, but then I remembered I heard a guildie talk in static and browsing appears normal. And it wasn't my router, because my roommate was busy watching Netflix in the other room. For me, at least:
Mumble is down.
SWTOR is down.
At least one other guild member (on the East Coast, while I'm in California) appears to have been affected.
Everything else, including browsing, xbox, netflix, etc, is fine.
I also have AT&T.