It's a marketing research company, called the number back and received a voice message saying what they did and having an option to leave a voice mail to have number removed from db

Sounds like they sell you information:  

GfK Mediamark Research & Intelligence, LLC is the leading provider of magazine audience data to the advertising and marketing communities. We produce this data rich resource as an extension of our comprehensive single-source media/marketing database. MRI clients also get access to our Reporter database that provides summary tables of key audience and product usage data from our national probability sample of 25,000+ households.

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If you have questions or need help finding information, please call 212-884-9299 or e-mail mriplus@gfkmri.com

Not suprised that the number has a recording saying disconnected but sure doesn't sound like an AT&T message.
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Welcome to MRI+

Welcome to the newly redesigned MRI+.  We have updated our look and hope you find everything you have become accustomed to within the MRI+ database.
New ABC data has been integrated including state by state circulations as well as additional breakouts on verified circulation.
If you have questions or need help finding information, please call 212-884-9299 or e-mail mriplus@gfkmri.com

The leading database of key magazine planning resources.

MRI+ consolidates, in one convenient place, many of the databases used to evaluate magazines or seeking directory and editorial information. It has a powerful search and access capability, plus a cost-planning module.
The information link between planners and publishers.
MRI+ is a library of key magazine planning data resources providing an information link between the planner and publisher.

Need help? Email mriplus@gfkmri.com.

Now this number comes across as GFK.  Asking for children and will not leave a message or identify themselves.

Called us at 7:00pm on Saturday night.  Didn't recognize the number and didn't answer it.  no message was left

Got a call from this number tonight at 7pm, asking to talk to my husband, said they were from the BMV and were only authorized to talk to him, but when he got on the phone they hung up.

Got a call at 8:30pm was not home but they did not leave a message tried calling back and the mail box is full!!

I just got the call and they asked some questions then about if I smoke and what and then they said they have already filled that quota and had to go and hung up. I'm pissied why I'm getting a call at 930 at night from them

Got a call 2 nights in a row. Same time. It's registered.under Rsch Bernett based out of Boston. They r a little weird if they are the ones calling and telling you they have to go??? Sounds fishy to me. I can't wait for them to call again (since I missed the calls) and see what the hell they want.

this # called didnt leave mess. i called back and said voicemail full? what is this #

they called and asked me about products like a survey for approx 2 mins then ssaid they were sry and had to go....

I got a call from that number too. I tried to call it back and it said that the mailbox was already full?