Who called from 4087963136

Called me, didn't leave a message.  I have no idea who they are or why they are calling me from California.

7 that's SEVEN calls in 18 minutes! I didn't answer they left no message. Called again as I'm writing this. PIA

they just called me and asked for me by name and said they have 3 people with the same name as me and rambles off my DOB and where I was born! I hung up and blocked the number- called it back  and it says the number is disconnected????

Called me. I didn't answer. Left no message. I called number back and  got the recording that it is not in service.

Got 5 calls today from this number. Call it back says not in service. It leaves no message. POS. How does one report them to the FCC?