Who called from 8583975500

I receive a call from Microsoft I have 2 viruses. He want get in my PCM

Received a call from this number today.  Called hung up.  When I called back I got the voicemail of an Eric Sandler.

got a call from 858-397-5500. he said he was from microsoft and wanted me to communicate by computer because my computer was downloading without my knowledge.  I called back and "microsoft' answered but i am suspicious and did not continue the conversation.
j

I received the same call today on my work phone.     I called the number back and Eric Sander answered.

BEWARE.  I just received a call from this number too.  No way would I give them access to my PC, nor sign up and give a credit card number.
However, they claimed to be Microsoft Support.  I called the number back and got VM for Eric Sadler
I then called Microsoft - this is NOT a Microsoft number, per Microsoft.  
I thought Microsoft would want to know that someone is pretending to be them, but I got some tech who didn't care.
I tried to be careful, sure hope they didn't do something to my PC (even though I would not give them access and I turned off wireless, but who knows.  I should have just hung up).