Didn't leave a message---something tells me this is the same robocaller that's been dialing my number from multiple CA and WA area codes all week, with the same message (obviously, spoofing phone numbers and area codes).
Just called me too and hung up when it got the machine. This call came in about an hour after getting a scam call from "Windows Technical Support." Probably the same scammer with a different message as I've found these calls usually come in batches. Blocked!