This number called me over 100 times during a 1 week period.  About half the time they would leave a voicemail, about half they wouldn't.  All I would hear if I answered or if I was left a voicemail was unintelligible background talking and loud music.  Most of the calls came in the middle of the night, sometimes every 2 minutes.  I was able to block the number on my cell phone, but it still kept a record of every time they tried to call.  After about a week, the calls just stopped