Rude caller. Called at an inappropriate time, after 7 PM on a week night and left no message. Bad phone manners.
Why am I not surprised? Another cite said number not valid. Probably spoofed.
I've heard of telemarketing ploys were if you are on the do not call list, they call and let it ring once. Then if you call back, the Feds don't consider it a telemarketing call because you called them.