Called at 9:30 am to Austin Tx.  Message:  " Can you hear me?  This is Susan."   I hung up.
  Answered because of relatives in the area code.  Blocked.

I read recently that there are those that are calling various hours of the day to determine if one answers the phone.  They sell the lists to telemarketers as info.  

called @12:16 pm. no message for ans. mach.