Who called from 5032012256

I got a call about 10 till 10 Central time. I was in class taking a final. No message was left, and when you call back it rings once and then goes to a busy signal

Just received a call that went into voice mail. Not using any minutes to find out who it is... can you identify who this is?

Just got it too. No message, and ain't gonna be no answer.

I just received a call from this number but no voice mail was left. I didn't want to call it back since I did not recognize it. I think that its weird that we have all received phone calls from this number all so close together. Very weird.

Just got one too. No voice mail. I'm in atlanta.