I keep getting calls from them after I have told them TWICE to stop calling.  I am NOT on Medicare and I find them rude and intrusive.  Already this morning they have called twice.

I suspect these are some " ILLEGALS", who are in the process of getting themselves into position to sell, gather, & confirm latest & up-to-date phone numbers. I have been told, through the politico grapevine, they are part of the "get out the vote", process that helped get the King Obama elected; both elections, Also, they are connected & supported by the Democratic Party young, useful idiots, on the Demo side & know nothing, except what they are told by their "Puppet- Masters".
The Word "ILLEGALS" above refers to Muslims, latinos, asians, blacks & any minoritites that are searching for their own dreams of living successful lives here in the Kingdom Of Obama. They don't realize that what they send around, comes back around to bite them in the a** & then, they are simply added to the list of subjects & servants of the Demos. I say to them, wake up & wise up, before it is too late for you.
This phone number & service is provided by "Ameritech Michigan" & is a landline (residential) & Ameritech Michigan has several websites.
This information is based on what I have been told by third parties & the political grapevines. I have no documentation backup for above information; only the telephone info available for public viewing. I say, adios & good luck kids!

I do not have any bills

First few calls they did not say anything but, they didn't hang up either.  Then they did call and there was a male person on the other end that sounded like they had a speech impediment and accent.  I told them that I had gotten several calls from that number where nobody would say anything and now that they have I can't understand them and it was ridiculous.  They still continue to call but, I have no idea why they are calling.  
Jackson Sherrie is the way it comes up on the caller id.  Very annoying.

These telemarketers will call with no message nonstop until you dial their number back.  This gives them a way around the national Do Not Call list.  If you dial them back and get that 'disconnected' message it does not matter.  They are free to continue to call you, DNC list or not, because they are RETURNING your call to them and the DNC list laws do not apply.  On the rare occasion that a person is actually on the line when I answer I ask them to hold, push a button on my number pad to give an audible tone and then tell them that the call is being recorded and ask them to repeat their name and company.  This almost always results in the calls stopping.  Best option is never return a call and save it in your phone marked as spam.

Called my cell phone twice this afternoon.  Did not bother to leave voicemail, as I was unable to answer.

Calls all the time.  Hangs up.  Caller ID say Sherry Jackson

Called almost daily. Today  I answered and asked to be taken off the call list and hung up. I was immediately called back. Then I was told because I had hung up he would make sure that I received a call every day! Stop this abuse of my privacy. I am a very reasonable, mostly calm person. This REALLY ticked me off!

this sherry Jackson calls, says from medicare, try to call back immediately, says not a working number, no it is a fraud

Number comes back to Detroit, Michigan.  This is either the unfortunate victim of ID spoofing or a really, really, stupid person.  One call today and one call about 3 weeks ago.  No messages.

http://411.info/people/Michigan/Detroit/Jackson-Sherrie/49091181.html

No message did not respond

They asked for me by first name. So somehow they have your identity.
I did not tell them. I asked who was calling.
They said "You are on Medicare now aren't you"?
I said none of your business and hung up.

They are probably trying to sell some sort of insurance or just scam.

Getting calls from this number CONSTANTLY! They never speak...just the calls. How do I make it stop?

They call and hang up - it's so stinking irritating!