Just got a call at 4:14 and was disconnected.
It appears this is a service that trolls a list of phone numbers for active accounts, removing those numbers that have the wurbel tone along with the message "The Number you have reached ..."
I have a hunch, everyone who had this number call them, has inadvertently let this service know your number is an active account and expect it will be sold to Marketing/Sales/Political reps.