I don't know what to say. Except please lower your expectations. The chances of his number calling yours in the next hour (or day) are pretty slim. Don't get your hopes up and go about your day not expecting anything. It makes it that much sweeter when things go your way.
Personally I would find it a bit creepy if someone I had a couple of brief conversations with went through great lengths to track me down a year later. But I know some guys might think it's romantic. So you never know how this will work out.
Don't cry, don't regret and don't blame
Weak find the whip, willing find freedom
Towards the sun, carry your name
In warm hands you are given
Ask the wind for the way
Uncertainty's gone, your path will unravel
Accept all as it is and do not blame
God or the Devil
~Born to Live - Mavrik~