This number has called several times and leaves either a blank message or hangs up when the phone is answers.  This has happened approx 4 times.

Same happened to me."hangs up when the phone is answered. "

We have been receiving calls from this same number for a week now -- multiple times a day.  Just this morning when it happened and I answered there was a recording saying that "Mike" from the carpet cleaning service was offering a deal -- I pressed 1 (per the instructions) hoping that would connect me with a live person but it didn't.  Then the call disconnected.  AT&T tells me that they cannot identify the number.  It was disconnected over 4 years ago with them.

Same with me...All i want to know is how to block them, or what buisness it is so I can call them back.