Who called from 9513276742

I answered the call and said "Hello"
After a long pause then the computer said "Goodbye".

I have been getting calls from 951-327-6742 & 951-237-9795 & 951-237-5667. I block them on my iphone. However, they seem to just change their #. They never say anything. I called them back once and told them to stop calling. Didn't work

Recording said ," please hold for the next available agent" but there was just a long Dead Silence so I hung up.

Caller form San Jacinto, CA.
Left no message. Possible telemarketer/scammer.

Called number back with blocking code *67. Finally someone responded "Bueno", so likely some scam directed to Spanish speakers. Now blocked on cell phone.