OK, my house was burlgarized a few weeks ago, they took every thing, from money to paperwork. Anyhow, my green card is missing along w/ everything. I need help locating my A# to re-apply for my green card. I know the process to reapply online but I don't know my A#. I have a copy of my old passport when I entered the US, on the visa, there's a registration number. Is that the same as my A#. What are some other ways I can get my A#? Go to the social security office or the INS office?