got a call  at 10:09 and when i answered, i didn't hear a voice on the other line and assumed it was a telemarketer. i will report this number

I get calls repeatedly from this number. I answer the phone half expecting a telemarketer, but when I pick the phone up no one is there, just silence. I called the number back and let ring& ring- no one answers. Would love to find out who's calling.

My caller ID says UNHG, I never answer the phone, I let the machine get it, if it's unfamiliar.  They never leave a message.  Since others have answered and the caller seems to be mute, it may be one of those automated things that they use to call and see what time of day someone answers.