I received a call from this number around 9am.  The caller identified himself as someone from a law firm and stating that they were calling from a recorded line and they wanted to verify some information.  I got nervous and hung up.  I assume it was a debt collector but do not know for sure.  They did not call back.

I answered and said "Hello!" 3 or 4 times before a woman asked for someone who doesn't live here.  She was persistent and didn't identify herself or her company.  I asked to taken off their calling list.
The caller ID said "MOD 43" and the phone number 313-879-1933.  I suspect it was a debt collector.  I don't have any debts so I knew it wasn't for me.

This number calls me in the morning (usually around 9:00).  I let it go to voicemail and there is NEVER a message left.  I believe they also call from 313-879-1998 because that number usually calls with a few minutes.

Got a call from this number...did not answer...a message was left...when I played the message it said "time, thank you and ended.

Don't know if this company is a scam or not but never give your personal info to anyone unless you know for sure who they are.  By looking up public records a person can get your name, address, date of birth, place of birth, mother?s maiden name, the state and county where you were born and a lot of other information.  What is hard to get is your Social Security Number.  Using computer software a would be identity thief can predict with fair accuracy what the first 5 numbers are in your SSN.  Name, Date of Birth and Place of Birth fills in that information.  Now all that is left is for the thief to call you and pose as company who needs to "verify" your last 4. After that the fun begins -- credit cards, loans, jobs, you name it.

I, too, received a call from a company called "Frontier Financial Group" ak "ffg".
It was from the number: 313-879-3631.  Right off the bat, the person who answered stated the company name and asked, as they said, "before we can give you any information we need to identify the last 4 digits of your S.S. # "  Well, needless to say this is where the conversation ended. Why would they want only my last 4 of my S.S.#??  From this call, I can't really identify if scam or not.
Does anyone else know this number?  Or Frontier Financial Group??  
Replies welcomed!

WELL CALLED BACK AND WAS ON HOLD FOR BOUT 10 MINUTES. AND IT IS GREAT LAKES HEALTH CARE THROUGH MEDICAID. POINT IS ANSWER IF THERE CALLING YOU THEY WILL HAVE YOUR INFORMATION IN FRONT OF THEM BECAUSE   IF YOU CALL THEM BACK THEY CANT'S SEEM TO FIND INFORMATION I ENDED UP HANGING UP AND AM GOING TO WAIT UNTIL THEY CALL ME BACK............LONGER THEN 10 MINUTES........

Great Lakes Health Plan which is part of Medicaid.

Calls every day no message. When called back a recording answered. No name was given however the recording  said they solicit for mail and telephone campaigns of undefined corporate entities and charities.