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

spam, ....

want you  phone  number

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.