Who called from 5168000000

This number called my cell phone and never said a word.  I kept saying hello but no one said anything so I hung up.

complete and total scammer says from Microsoft Web avoid at all costs

They keep calling me and I think they are spam

(516)800-0000 This number keeps calling and claiming to be working for Microsoft
wants to log on to my computer to help me take care of systems that have stopped running on my computer, that makes the computer be at high risk

No I did not purchase any Microsoft product but I did enter my number on a car insurance site for multiple companies. Did anyone else do thesame?