May 18, 2012
This is a number you may see if you get a call from the Vanguard Group Unclaimed Property Unit. If you call this number back, you will get a Vanguard Group message that instructs you that you can reach them at 800-572-3524. I know this is a legit number because they replied to me using this number in response to a voicemail I left them at their 800 number.
However, to emphasize the obvious - If you need to contact the Vanguard Group Unclaimed Property Unit, you should go to the Vanguard Group website and get the number there (i.e., don't call numbers you read on message boards).