My random area search dialer came across this retard who identified his company name as “Technical support for Windows and Mac”.
Many years ago this number was related to a company who has a website still active and a dozen or more numbers I have linked to them, all of which area long dead.
This may still be the remnants of these clowns
A call to him went into typical hackers and intruders on our network and IP nonsense
They’re currently under heavy flood and high level abuse when he went into the hateful death to America tirade 
8886541789 Technical support for Windows and Mac
The worst audio quality headset award nominee