Who called from 4158654000

I receive a daily call from this number.

they called at work and I was unable to call them back, the number will not go through~

I am getting 2-3 calls a days on my cell phone from this number. When I call back the message says this number is no longer in service,

a guy called me and he left his # 415-8654905, who is very strange and judgemental.
he claimed he is a tel communication engineer

I had the same experience as others:  Lots of calls. When I return them, I get an announcement that "this is a non-working number"