I just now received a phone call from someone claiming to be with the Social Security Administration here in the USofA. The person knew my real name, but insisted that I give my SSA number to verify my identity.
The phone number (269-979-5xxx) traced back to a "boiler-room" telemarketing operation somewhere in Battle Creek, Michigan.
Be advised that the Social Security Administration never calls, but only uses the USPS to contact citizens. If you suspect that the caller is trying to scam you, hang up immediately and contact either the Federal Trade Commission or the Social Security Administration by phone.
(Good luck with that. Trump's shutdown of the government means that contacting someone in these organizations is night impossible.)
Link: Beware of a New Round of Impostor Scams