This number calls multiple times a day to my elderly Mother's phone. Usually a recorded message, sometimes a person will pick-up when Mom answers. They continually threaten that she will be arrested if she does not pay them in regards to registering a car that she does not even own. Perhaps this is a debt collector(?), but she has told them repeatedly they have the wrong number and to stop calling, but the request is ignored. Escalating to AT&T's Annoyance Call Center. Return calls to the number give the same result as reported by others here, "This number is no longer in service."