Who called from 5155555555

got several calls from this idiot today.
Not a clue who it is

i all of the sudden got 2 calls from this number today, i answered once and it just disconnected.

this phone number has called me several times this week.  I tried to call it back and received a message saying It was not a valid number.  I looked it up on line and found it linked to a couple of differnt agencies that I have no affilation with and had no business with.  I don't know who is using this number or why.

received two calls from this number today at work, number not recognized and no message left, trying to find out more information... not cool

This showed up on my caller ID. It said DIR ASST IA. No message was left. I called the number and only got a real fast busy signal.