Caller ID said "Center for Mark".  No message left on voice mail.

keep calling and dont leave message

They are a marketing firm from the University of Akron trying to get you to sign up for their marketing and research study. They have called several times. I finally called them back and they said I had to wait for them to call me again to get taken off their list except everytime they call NO ONE WILL ANSWER! Very annoying!

This number shows up on my caller I.D. ( center for mark) but no message. I tried calling it back but no amswer. Not trying again hope it wasnt important.

SUPER ANNOYING. have told several of the callers that we are unwilling to participate, they reply "you should have told the first person". They always seem to call well past 8pm, and tonight is a Sunday when they called! Reported to FCC for harrassment since I have requested not to call and they continue. I can only block 31 numbers with Armstrong Cable telephone, so I had to 'bump' others off the list to include most everything from 564 4200 thru 564 4235.

It came up Center For Mark.  They didn't leave a message, but called back right away.  I didn't answer.