What is an Alien registration number?

[gcSnail]

Our AOS is pending, do we have an A number ?
As far as i know , i have only a wac number.
For change of address form (AR-11), they ask for Alien registration number. Since we don't have green card yet , what do we need to give, just N/A ? Please send any information available

 

[tsram]

See your 485 Receipt.

There is a A number. That is the alien Registration Number.
This number carries in all your AP & EADs