Where do I find my A-Number?
Where you find it
It appears as "A-" followed by 7 to 9 digits on USCIS letters, your green card, or your visa.
Why they ask for it
If you've had a case with USCIS or you have a green card, you have this number. It links you to your file.
Also asked as
What is an alien registration number?
This explains where a value appears on your documents. It is not legal advice or an opinion about your case.
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