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  1. What And Where Is The Alien Registration Number (A-Number)?

    Learn about the Alien Registration Number (A-Number) and where to find it on US immigration documents. Essential for visa and green card applications.

  2. Alien Registration Number - How to Find Your A-Number

    Aug 6, 2025 · Your Alien Registration Number might be the most important number to have as an immigrant. Learn how to identify your A-Number, and how to find it if you lose it.

  3. Alien Registration Number (A‑Number) Explained | CitizenPath

    Oct 2, 2025 · An Alien Registration Number, also known as an A-Number, is a unique seven- to nine-digit number assigned by the U.S. government to noncitizens. It helps immigration agencies like …

  4. Is an Alien Number the Same as a Green Card Number?

    Aug 8, 2025 · To locate the various numbers associated with a Green Card, individuals should examine the physical Permanent Resident Card (Form I-551) and related notices. The Alien Number (A …

  5. A-Number/Alien Registration Number/Alien Number (A-Number or …

    Definition A unique seven-, eight- or nine-digit number that the Department of Homeland Security assigned to an alien. Also see USCIS Number.

  6. Alien Registration Number (A-Number): Complete Guide for 2025

    Jun 25, 2025 · Learn what the Alien Registration Number is, who gets one, and how to find your A-Number on green cards, visas, EADs, or USCIS notices.

  7. Alien Registration Number, Explained - Boundless

    After your initial application for a green card, you’ll be asked to provide your Alien Registration Number (also called an “A-number,” “A#,” or “USCIS number”) on any forms or petitions you file with U.S. …

  8. A Simple Guide: Where to Find Your Alien Registration Number

    Jan 12, 2026 · In this guide, we'll show you where to find your Alien Registration Number, explain its significance, and answer common questions about the A-number. Written By: Chelsea Spinos …

  9. What is Alien Registration Number, A-Number & USCIS Number?

    An alien registration number, often referred to as an A-number, is a unique identifier assigned to certain non-citizens by the United States Citizenship and Immigration Services (USCIS).

  10. Alien Registration Number: Benefits For U.S. Immigrants

    Jan 31, 2025 · Find out what an Alien Registration Number (A-Number) is, where to locate it on USCIS documents, how it’s used, and why it’s important for immigrants.