Who called from 8139022331

I have been getting repeated calls from this number as well as several others. If I answer, there is no one on the other end. I get these calls repeatedly throughout the day. I don't know who is doing this, but it has become frustrating. I tried to block the calls, but my phone won't accept anymore blocks.

Called my cell phone, no message

same crap - call back and get not a working number. Maybe if we get a class action suit and sue the carrier they will put a stop to these people.         813-902-2331

some dude with a heavy accent offering me medications.  For what?  I guess whatever I want.  These people call all the time for someone who previously had my number and I keep telling them to go away.  This guy said he was located in Waterloo, had lived there for 1 1/2 months and before that he lived with his friend Jeff.  Hey, I waste his time too>  Told him to go sell Jeff some medicine.

Class action lawsuits won't work, since these azzwipes are calling from overseas, using spoofed US phone numbers.