This number has called several times and when I answer there is no one there.  It is quite annoying.  

According to caller ID, it's a collection agency . . . and I don't owe anybody anything!

They called me twice this morning.  I only answered to be able to tell them to stop calling. They are a debt collection company. Wanted me to verify my zip code and DOB. I politely informed them they have the wrong person and that I am not giving them any personal information, and to stop calling.  Number showed up as Unassigned, but it is SRA Associates.