This number keeps calling me

Received same call three days in a row at the same time, never left message. Attempted to call back, just a busy signal each time. Caller ID tells me Health Care Aud, number is listed for Huntsville, Alabamaa. Call is now blocked.

I received this call 2x both times no message. Tried to call back and once got busy signal and another call would not go through.

Got called, no response. On reject list.

This is a call from Huntsville Hospital. I was in the ER yesterday. Thought I recognized the prefix, but I didn't answer. Tried to call back but got the busy signal. It's an outgoing number that you can't call back. So if you were called, you were probably at the hospital, have an pending appointment at one of their clinics, etc.  probably not a number you want to block.