I called the number back and was told they were calling me on behalf of my mortgage company to inform me of an offer.  I don't believe this as if it was my mortgage company, they would have identified themselves with the company name.

I wish they would stop calling me.  I have filed a compliant with the US Registry.

Yes I got this number also. No message left. I called it back and said it was on behalf of my mortgage company. My mortgage company knows nothing about this number or why they would call. I am turning them in to donotcall.gov