Who called from 7783827470

Picked up one call from this caller,  no body talked..

Called me twice today. First time left no message. Second time, picked up the phone, no one talked....

The man on the phone says that he works for Re/max-wanted to know if I wanted to sell my house?

Just called my house today July 19th at 6:05 pm and nobody was on the other end.

Says he works for Remax, but I doubt remax goes around calling random people from a cell phone.