I returned the phone call and got a weird message that this number was not currently in service.  It was less than 5 minutes after I initially received the phone call, that I returned the call.

2 calls from this number today along with 2 other numbers I didn't recognize- didn't answer

I have received 3 calls from this number today.  I called it back and received a strange sound then a recorded voice saying "this phone is not in service".

Recived like 5 calls from this number this week..

Called, left no message.