This number (213) 373-6145 has now called me five times today (Monday). I filed a complaint with the FCC. Suggest you do the same. Here's the link to the complaint form: https://esupport.fcc.gov/ccmsforms/form1088.action?form_type=1088B
6/16 14:48 Have reported this number at 800Notes 8 times, no ID and have stopped even attempting to leave a message, but at first was like A Richard, listened to voicemail, mumbled something and hung up. Never leaves message or identifies who they are.