I just received a call fom this number. I've gotten several phone calls from "503" area codes over the past few months. I assume it's the same people calling. Every time, the same thing happens. If I answer, they immediately hang up on me. When I try to call back, the line doesn't ring, and I automatically get a busy tone. And they never leave a voicemail. Whatever the heck they're trying to sell must no be too important because they never even SAY anything! These morons need to get a new day job.