This number called my cell. Since it was unfamiliar I let the call go to voice mail. No message was left. I see that no one else has reported the number. It may be something perfectly legit, but to hang up without leaving a message smells like a telefraud operation.
Got a call from this number, they stay on the line long enough to leave a 1 second long message with no content. I block all numbers that do that or call and don't leave a message. I'm blocking about 3/day.