Who called from 3135293025

I am guessing that these people are some type of scammers. We get call from this number all the time. I picked up the phone because they called at 11:50 PM. No one answered but, I still have a connection. Guess who is about to leave the connection open as long as the phone stays connected. Hope they get the message when they get a very large phone charge.

My bad. The number should have been 313-528-3025. However, the location information turns out to be the same. Mut be one of many numbers that they use