Villain is unknown, but didn't play too many hands over the last 12
I can't put him on anything but 33

Full Tilt No-Limit Hold'em, $1.00 BB (5 handed) - Full-Tilt Converter Tool from FlopTurnRiver.com

SB ($100.60)
BB ($162.90)
Hero (UTG) ($110.60)
MP ($167.25)
Button ($180.55)

Preflop: Hero is UTG with 2, 2
Hero bets $4, MP calls $4, 3 folds

Flop: ($9.50) 2, 3, A (2 players)
Hero bets $5, MP calls $5

Turn: ($19.50) 5 (2 players)
Hero bets $15, MP calls $15

River: ($49.50) 5 (2 players)
Hero bets $45, MP raises to $143.25 (All-In), Hero ???