Missed a call, tried to call back and no answer, The voicemail service did not give a name.

Hang up call. Caller ID just said "Wireless"

We keep getting calls from this number and it says Security Force or the security Force. Other times it calls from 774-206-1579 and they call all hours of the day and do not leave a message. I tried calling the number back and it just rings. I finally answered a call tonight at 8:30 pm EST and the guy said we had put entered into a drawing for a john deere lawnmower and that we had also won a $1200 security and medical system but I just want them to quit calling all the time.