What Is My a-Number and Where Can I Find It

For many immigration matters in the United States, the A-Number, or Alien Registration Number, serves as a unique identifier assigned by U.S. Citizenship and Immigration Services (USCIS). This nine-digit number helps agencies track an individual’s immigration history, petitions, and status. Knowing where to locate the A-Number can simplify forms, applications, and case status checks, especially when dealing with visas, green cards, or naturalization processes.

What Is An A-Number

The A-Number is a nine-digit identifier assigned to noncitizens by USCIS. It is used to track immigration records across agencies including USCIS, the Department of Homeland Security, and the U.S. Department of Justice. In many documents, the A-Number appears as “A” followed by eight or nine digits (for example, A123-456-789). The A-Number remains the same throughout an individual’s immigration journey, regardless of changes in visa status or petitions filed on their behalf.

Where It Appears On Documents

The A-Number can show up in several official documents. Common placements include:

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  • Green Card (Permanent Resident Card)—the A-Number is printed on the front or back as a single line labeled “A-Number.”
  • Notice of Action (Form I-797)—issued by USCIS, often lists the A-Number for petition recipients or beneficiaries.
  • Employment Authorization Document (EAD)—the card may display the A-Number, especially for certain work authorization scenarios.
  • Immigration Applications—forms like I-130, I-485, N-400, and others may request or reference the A-Number if applicable to a prior record.
  • I-94 Arrival/Departure Record—older or maintenance records may include the A-Number alongside passport details.
  • Immigration-Related Notices—letters from USCIS or other agencies may reference the A-Number in the case information section.

How To Find The A-Number On Paper Documents

Locating the A-Number on existing papers can be straightforward but varies by document:

  • Look for a line labeled “A-Number” or “Alien Registration Number” near the top of the card or on the back of a card.
  • On Form I-797 notices, check the top right or left sections where applicant and beneficiary information are listed.
  • On a Green Card, the A-Number is often printed below the cardholder’s name or in the lower portion of the card.
  • For EAD cards, scan the front for “A-Number” alongside the card’s other identifiers.

Finding The A-Number In Online Accounts

Online portals provide convenient access to the A-Number if it has been issued and linked to a profile. Useful resources include:

  • USCIS Online Account—after logging in, view case details, receipt notices, and personal identifiers that may include the A-Number.
  • Case Status Tools—some portals display the A-Number in the case history or saved documents section.
  • Important Notices—downloaded PDFs or messages often repeat the A-Number for reference.

When You Might Need The A-Number

Many immigration steps involve the A-Number. Typical scenarios include:

  • Petitions and Applications—filed by family or employers, where the A-Number links new requests to existing records.
  • Consistency Across Agencies—tracking progress across USCIS, Department of Homeland Security, or Department of Justice systems.
  • Naturalization And Green Card Processes—applications like Form N-400 or Form I-485 often reference the A-Number.
  • Document Replacement—when replacing a card or correcting records, the A-Number helps ensure accuracy.

Privacy And Security

The A-Number is a sensitive personal identifier. Users should guard it as they would a Social Security Number. Tips for safety include:

  • Avoid sharing the A-Number publicly or on unsecured sites.
  • Only provide the A-Number when required by official forms or verified, legitimate entities.
  • Keep physical documents in a secure place and maintain digital copies in protected storage.

Common Questions About The A-Number

  • Is the A-Number the same as a Social Security Number? No. They are separate identifiers used for different government programs.
  • Can I get an A-Number if I never applied for immigration? Generally, an A-Number is issued when a person has a specific immigration record or petition; it is not issued to visitors without such records.
  • What if I can’t locate my A-Number? Review all USCIS notices, green cards, and EADs. If still missing, contact USCIS for guidance, and avoid sharing sensitive information in unverified channels.

Key Takeaways

Identify the A-Number on official documents and online accounts where available. Use the A-Number to streamline petitions, case status checks, and record inquiries. Protect the number as a sensitive personal identifier to prevent misuse.

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