Received two call from this number and caller hangs up.  

RECIEVED CALLS FROM THIS NUMBER, I ANSWER AND THE CALLED HANGS UP, CALLED BACK AND GET MESSAGE NUMBER BEEN DISCONNECTED

Caller ID says Chicago IL. I did not answer.

This number calls relentlessly never leaving a message. Upon checking on it, it comes up as  Peerless Network Land Line out of Chicago, Illinois, USA.
Some type of scam call but in theory want medical insurance information, heavy "foreign" accented man from the comments posted.
Just another number to report and add to the long list of numbers we have reported.  We are on do not call lists.  We have no idea of  who it is or why they are calling.  We would like them to stop calling, as do all of the comments about this number.

Just receivd a call from this number.  Didn't recognize the number.   Blocked it.