can anyone help! I am in the beginnings of filling my I-485 & I-130 as i have just got married. On the bottom of the Biographic information form it asks for an 'alien registration number' ...am i supposed to have one? where do i get it if i do?
help!!!!

You are given this at your interview. Drove me nearly insane too looking for mine.

thanks....so i guess i just put N/A in that space then?

If you don't have one just write "none".

I got my A# with the notice of receipt about a month and a half after filing I-485 etc (also based on marriage).