got a call from 213 596-2925 no answer, they just listen and hang up

They hang up....I am certain this number and the following numbers are from the same place because I get the same answering system in which the company does not identify itself on the system: 619-717-8487, 213-596-2925, 909-657-9912. Don't answer it! I am not answering any unknown numbers..

Received several calls from 909-657-9912 a few days ago and now I got a call from 213-596-2925.  They must be affiliated.  No message left when they call.  Numbers added to blacklist.

I received calls from the numbers you listed. I did not answer.  They keep calling.  Not answering any unknown numbers and I am not calling back.  These are SCAMMERS.

One ring phone scam?  http://www.nbcphiladelphia.com/news/local/Bew ... -245019511.html