I have received several calls from this number, they never leave a message. I decided to call them back and see who it was, it was an Auto Warranty company. You may call the number and add yourself to the do not call list by pressing 1 after the auto record prompts you too.
Do not answer calls you don't know and never call them back. By calling them back and/or pressing "1" you just verified yours is a "good" number and you invited more of the same BS call. Get a call blocker.