Who called from 6234325856

So much for the do not call lists. Received call at 3:05pm and it said you are the only person in this conference call. That was it.

who is this number busy when called back

They called twice today.  2nd time was a recording that said "Good bye" when I answered.

this number has called me 3-4 times today and when I ansewered it said goodbye

This number has called me 8 times in the last week: last Tuesday, Thursday and 3x today (Monday). It's infuriating not to be able to do anything to stop it.