Well, apparently it isn't. as I'm only getting 279. Welp, time to start digging around in some settings. >:\ Thanks for the heads up though.
Edit: Well crabcakes, it's not the firewall. As I get the same results with it off as I do on... Humbug, guess it's time to ask google a question and hope there's an answer. @_@
Edit 2: Well, if there's any comparison there's 4237 TF2 servers... I'm guessing there should be more than that...