Home  »  Knowledge base  »  Help! I can’t find my A-Number.

Alien Registration Number, or shortly A-Number, is an eight- or nine-digit number generated and assigned by USCIS to noncitizens when they apply for permanent resident status in the USA. You are supposed to indicate your A-Number in all USCIS forms, if you have it. Note that if your A-Number is fewer than nine digits, you should insert a zero after “A” and before the first digit, in order to create a nine-digit number.

You can find your A-Number in the following documents:

– green card,

– immigrant visa stamped in your passport (excluding nonimmigrant visas),

– immigrant data summary and Immigrant Fee handout (you have these papers if you applied for the green card through consular processing),

– employment authorization document (work permit),

– some types of the Notice of Action.

If you still cannot find your A-Number in one of the mentioned documents, you can submit Form G-639, Freedom of Information Act/Privacy Act Request (also called FOIA request) to get a copy of your Alien Registration Number.

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