If you don't have hukou in China, I really I don't know this because I am not familar with the regulations in this area. Very sorry for this. I guess that many oversea Chinese who gave up their hukou may have the same question.
If you go back to China for a visit, you can try to lvisit ocal shebao ju and ask them to enter your ID (sheng fen zheng hao ma) to search the database. China invested a lot money in this area and each province/city has a very good information system. The company I worked for earned some money from it.