Who called from 5620594744

This 5620594744 number Just called me, I tried to call back but it went to a weird voicemail... Maybe it's spam

Got a call from this number, left no message.  Called it back and it went to a voicemail.

Got a call from 562 059-4744.  No one answered.  I have a do not call phone number.

2 weeks of hang up calls from this shady unidentified caller, which looks like a spoof number.

I get phone calls from this number daily! Sometimes more than once in a day!  One day I answered it and it was a recorded message that made no sense to me. I put them on my "phone number block", I know that will work but what else can be done to stop them?