Who called from 4123074523

Called for my ex-wife of more than 6 years. I didn't even have this number when I was married. I wonder if they are some sort of collections or something. They can be real bothersome, best guess at this point. Very annoyed that the called me.

Calls and hangs up on answering machine repetetively, Nuisance caller.

GC services.
Student debt collections