Who called from 5612961953

Received a phone call from this number and when I answered they hung up.

called no message

this number keeps calling my mother line.  She has Alzheimers.  I know for a fact the she has not outstanding bill or account with anyone.

They keep calling her and when I pick up and they ask for her, I tell them that she is not available and they hang up.   Then don't even give me a chance to tell them that they can speak with me about whatever.  They just hang up.

This number called and hung up when I answered.  I called the number back and they answered Police Benevolent Association. ??? ...  I hung up.

How many frickin #'s do these people have? I have already blocked 4 #'s frim this Police Benevolent Assoc. and just received another one about 10 mins ago from this #