Recorded message from a research company

Hope they stop calling me and no answer disturbing,,,

I answered earlier tonight and no one would answer me ... an hour later they called and I did not answer, but they also did not leave a message.  Does anyone know who owns this number?  The display said Unknown Caller.

Same thing about to me a few minutes ago, and twice tonight

received call from this number twice tonight. Answered and no one was there.

This number has called me numerous times, am sick and tired of it ...