I got two calls from this number in an hour's time. Both times I got a message from a man with a foreign accent telling me to call the number back or he "will have local law enforcement at my doorstep." He never identified what company he was calling from. BS. This is harassment!
Indeed it is, but that foreign accent likely means little can be done about by anyone other than you. Try shutting down any answering device and letting the phone ring to hear nothing from these crooks.