I have a 93 year old friend who gets many calls from this number.  he ahs a cller ID.  When he answers shoever is on the other end does not respond, but whoever it is keeps calling even when he aksed them not to call anymore.

My 90 yr. old mom had this same # call her and no reply when she answers it.

This number dials our office regularly and hangs up.

Robo call selling insurance of some sort - machine cut them off.

When they call there is no voice or message but as soon as I say something the call disconnects.  Appears that there is some type of voice activation / recognition device that detects an answer.  I got two similar calls within minutes of each other.  I'm thinking that when I ask to be removed from these automated phone calls that my phone number is not totally removed but saved and later dialed but with no automated message given.  It's happening more and more!