Called twice today, dead line, no one there, hung up after 15 seconds, when called number got "not assigned" message, most probably a bot with a number spoofer.

The same. Be called at 3am. "Number not in service" if call back.

want you  phone  number

Received call from (514) 316-1437at 4 AM; nobody at other end of line; caller-ID "Asterisk"

Got a call today from that number, missed it. labeled Asterisk (which is  a VOIP phone software).