Called me twice this month, left no message. When I called back, a robotic voice said "goodbye" and hung up.

I received a call from this number. When I pick up I constantly get asked about a car I do not own. When I try to tell them to stop calling they immediately hang up.

I would assume this is a scam call. I've gotten calls like this repeatedly.

Carrier is Neutral Tandem or what is now Inteliquent.