Who called from 8014464684

When  I called this number back, there is a message that the number is no longer in service. How can this be, it they just called me/ Really??

JUST got a missed call from this number.. I also got the same message when I called it back, that the number is no longer in service.

multiple calls.  None taken.  Who is it ?

Called me trying to sell life insurance. Shows up as only "Utah" on my caller ID. Number is registered to Robert and Marni Rivera. The address associated with the phone number is 11492 S 3420 W, South Jordan, UT 84095.

How can you stop calls from random sellers?