22, 88, QQ, KK and AA are all in his range (although I AA/KK are a very tiny part of the range IMO.)

But to be honest it takes a very passive player to flat with AK. I just think that his range (as a reasonable player) is still destroying KQ. and you're dead to 4 outs for your last 5 bucks.

Opponent may... MAY have been doing this with JT if he's pretty aggressive.
The flop call is very read dependant imo.