I worked in America as a snowboard instructor for a few months in 2008, on an H2B visa. For that I obtained a social security number. The card has printed on it "Valid for work only with DHS authorization".
I haven't worked in America since then, but have recently been approved for an H1B visa so will be moving there shortly. Is my social security number from 2008 still valid, or will I need to get a new one?