What is the Alien Registration Number?


#1

What is the Alien registration number? (A number)
What is it for? And where do I find it?


#2

Hi Lauren, great question!

What is an A-Number?

An A-number, or alien registration number, is the number assigned to each “alien” immigrating to the United States by the Department of Homeland Security.

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What is an “Alien”?

USCIS defines an “alien” as “any person who is not a citizen or national of the United States.”

When do I get an A-Number?

You will receive an A-number when you are immigrating to the United States but not becoming a citizen or national.

Why do I need an A-Number?

As you are immigrating to the United States, you will need to be registered with the United States government. As you apply for visas and fill out forms, the A-number acts as an identifying tag. This tag is used to verify your identity on applications or petitions that you file.

What does an A-Number look like?

An A-number stars with an “A” and is followed by 8 or 9 digits.

Example of an 8-digit number:

  • A43 625 789

Example of a 9-digit number:

  • A 300 432 9762

Example of a 9-digit number:

  • A 300 432 9762

What does an A-Number Mean?

Having an A-number means that you are registered with the United States government as a non-citizen.

Where can I find my A-Number?

You can find your A-number:

  • On the front of your immigrant visa.
  • On the top right corner of your Immigrant Fee handout.
  • On your visa stamp (also known as a visa foil) in your passport.
  • Your A-number will be called the “Registration Number” on the visa stamp. If the number is fewer than 9 digits, put a 0 after the “A” but before the numbers.
    Example: A12345678 becomes A012345678
  • On the front side of your Permanent Resident Card (Also called Alien Registration Card or Green Card).
  • On any letter or notice you have received from the Department of Homeland Security.
  • If you are still unsure where your A-number is you can schedule an InfoPass appointment with USCIS. At the appointment an immigration services officer can provide you with your A-number.

Can I look up my A-Number Online?

No. Your A number should be on physical copies of most documents you receive from USCIS.

If you do not have a copy of one of the documents, contact the U.S. Embassy or Consulate that issued your request.

What is an A-File?

An A-file is the official file for all immigration and naturalization records.

Each file is identified by an individual’s A-number. This allows the government to easily search for any records they have concerning an individual’s immigration or naturalization case.

How long does an A-Number Last?

Because your A-number is used to identify your A-file your A-number does not expire. A-files are archived for government records.

However, you may have been issued more than one A-number. If this is true, you may need to include only the most recent or all of the A-numbers when filing your forms.