I called that number back and it is a collection agency..they were looking for the wrong person, they had wrong address..they took my number off their list

I get calls from this number at least once a week never leaves a message in the past half hour I have gotten 3 calls from collection agency's I don't owe any money the only bills I owe are rent and utilities I've had the same phone number for 10
Years and have lived in the same place for 5 years so there is no reason a collection agency should be calling me and if it was a legit company they would leave a message or send something in the mail

Oh look and they called again a half hour later idiots

Got a call from one phone number on my cell phone.  Picked up:  no on there and heard static.  Hung up.  30 seconds later got a call on my home number from a different number  same thing no one there then static.  I hung up.  We shall see if they call back again.

Just got a call, Caller ID said Local Office.  No idea who it was.  Caller hung up when the answering machine picked up.  Never answer calls from names and numbers you don't know.