This is Vanguard. They can't release any specific details until you pass through security, generally a security question. It's an outcall only line and if you are receiving a call it is because you submitted paperwork or a check was received in your name. If you feel uncomfortable answering a security question they can always leave you a reference number or make notes on your acct and you can call any Vanguard number you have from acct statements/website to be sure who you are talking to.
It's a number for the Vanguard Group investment company. They handle personal and corporate investment plans (IRA, 401k, etc.). Thier offices are in Pennsylvania and Phonix, AZ.
This caller left a message asking to verify information about recent paperwork submitted. The person he left a message for does not have an account with the REAL Vanguard company.
BEWARE!! There are calls going out to residents of Middlesex County in Massachusetts that are SCAMS.
Do not give out any personal information. And call the Attorney General's Office.