I also have been receiving calls from the 407-471-1301 without a caller identification regarding 401K information. If this is related to Hewitt in Florida then it is linked to John Hancock Financial Services out of Boston which contracts Hewitt to oversee their 401K plan. Hewitt has questionable issues regarding personal privacy and beware......
This is a legitimate number from Hewitt, who handles benefit information for multiple companies. I called my benefit hotline with a question, and they said they would get back to me. When they called me and left a message, it was this number, so it shouldn't be a scam.