Who called from 2532497248

I keep getting calls from this number, but there is never a message left.

So am I and they call 2 or 3 times in a row

WHO IS IT?

apparantly someone or something said you won a drawing and wanting to know if you want to claim that prize an airfare trip to pretty much wherever....I have seen this before where they promise you something and its really a foot in the door to get you to invest in timeshare!