Question: is the uscis number the green card number?
Answer: “A” number is short for Alien Registration Number. It is a unique seven-, eight- or nine-digit number assigned to a noncitizen. The 9-digit USCIS number listed on permanent resident green cards issued after May 10, 2010, is the same as the A-number. The A-number can also be found on the back of green cards.