Same thing here. Called late at night after 10pm.. No one on the other line. I'm on the do not call list. The CI read HEALTHCARE. I thought it might be an emergency. No I see it was a crank.
someone from this number woke me at 4 a.m. this morning when I answered they didn't say anything
when I called the number back they a machine said it was a telemarketing call
this has happened at least twice before and says if you do not wish to receive any of these calls push 1 which I have done on all occasions
I am on a do not call list and I don't appreciate being awakened by such calls