What is an Alien Registration Number and Where Do I Find It?

DB Posted by: Dhruv Bhandari
• 29 August, 2025
9 Reply
An Alien registration number is a 7-9 digit number which found on the various documents issued by the U.S. Citizenship and Immigration Services (USCIS). Through the Alien registration number, you can track the status of the immigration files.
Tags : Alien Registration Number

  • Nilesh Patel 27 August, 2026

    My understanding is that an A-Number is an immigration identification number assigned by USCIS to certain non-U.S. citizens. It isn't the same as your Green Card card number.

    For an OCI application, I'd enter it exactly according to the current application instructions. If you're unsure because your documents show different numbers, it's better to verify rather than guess.

  • Nikhil Vora 14 August, 2026

    If you're a Green Card holder, look at the front of the card for the USCIS. That's generally your A-Number, although it may be displayed without the “A” prefix.

    I also found my A-Number on older USCIS paperwork. I'd compare the number across your documents before entering it.

  • Ananya Khatri 23 July, 2026

    I had the same confusion when I filled out my OCI application. The A-Number is the USCIS number associated with your immigration record.

    On my Green Card, it was listed as the USCIS number and had the “A” prefix when referenced in immigration documents. I didn't use the card number.

    Still, check the exact instructions on your OCI application because the terminology can be confusing.

  • Tushar Singh Rawat 12 October, 2025

    I have lost my Alien Registration number, and I don’t know where to find it. So I have used the Freedom of Information Act (FOIA) system to get my copy of immigration, which includes all my details, and I got my Alien Registration number.

  • Ruchika Lobo 03 October, 2025

    The Alien registered number is assigned to the person who has applied for the green card if they have any ties connected to employment, or as an asylum and refugee. Simply, it me any person who is living in the USA has an Alien registration number.

    • IG
      Ishita Ghosh 11 October, 2025

      Here are some of the possible scenarios in which you are eligible to get an alien registration number: 

      • If you are applying for work authorization in the US on an F-1 student visa, then you are eligible to apply for an A-Number. 
      • To apply for a marriage green card in the US, you will be granted an Alien Registration number once you have received the USCIS notice after filing the green card application form. 

       

    • AR
      Aishwarya Rana 08 October, 2025

      Alien registration number is not issued to citizens who are in the US temporarily, like on a business or tourist visa.

Join The Discussion

Share Your Thoughts and Connect with Others.

Releated Topics
  • Which Document Will Serve as a Proof of Identity in Case of Individual Applicants, Including Minors and Huf Applicants?

    The documents that you will need to prove identity in cases of individuals with a Hindu Undivided Family (HUF) and minor applicants are an Aadhaar card, a valid passport, a...

    • 4 Reply
    • 1041 Views
    Which Document Will Serve as a Proof of Identity in Case of Individual Applicants, Including Minors and Huf Applicants?
  • Can I Travel to India With My Indian Passport After Becoming an US/UK Citizen?

    No. If you have a valid Indian passport after becoming a US/UK citizen, then you cannot travel to India. According to Indian law. If you have a foreign country's nationality,...

    • 3 Reply
    • 1333 Views
    Can I Travel to India With My Indian Passport After Becoming an US/UK Citizen?
  • What are the Top Safety Tips for Solo Travelers?

    If you are travelling alone, then you need to make sure of some of the things that are important for your safety. You must share your travel plans with your...

    • 2 Reply
    • 1300 Views
    What are the Top Safety Tips for Solo Travelers?
  • How to Prepare for Immigration Interviews at the Airport?

    Immigration interviews are just a step in the immigration process. You should be fully prepared to give an interview for your immigration at the airport. Here are some tips to...

    • 4 Reply
    • 1122 Views
    How to Prepare for Immigration Interviews at the Airport?
  • What Should You Pack for a Long Term Trip Abroad?

    For your long-term trip abroad, you can pack some of the important things that you will need for your travel, like a 6-month valid passport from the date of flight...

    • 2 Reply
    • 1023 Views
    What Should You Pack for a Long Term Trip Abroad?
  • How to Choose the Right Visa Consultants for Your Needs?

    Choosing the right consultancy for your immigration purposes is a very crucial step, as it will help in the application process more easily without any delays. First, you need to...

    • 6 Reply
    • 1233 Views
    How to Choose the Right Visa Consultants for Your Needs?
  • How to Deal With Language Barrier?

    If you are travelling to any foreign country, then the language barrier is the most common issue for anyone. Whether you are going for work or employment purposes. It is...

    • 5 Reply
    • 1239 Views
    How to Deal With Language Barrier?
  • What are the Best Tips for First Time International Travellers?

    Going to a new country for travelling to enjoy vacations with family or friends is very enjoyable. However, before travelling, you should be aware of some of the tips that...

    • 5 Reply
    • 1236 Views
    What are the Best Tips for First Time International Travellers?
  • Why You Need a Travel Insurance for International Trips?

    Travel insurance is very beneficial for international travellers because it helps an individual to avoid out of trouble. If it is missing the flights, baggage loss at the airport, any...

    • 2 Reply
    • 1266 Views
    Why You Need a Travel Insurance for International Trips?
  • How to Handle Passports While Travelling Abroad?

    Here are some of the best tips to handle your passport, which will help you safely travel internationally. The first thing you need to do is always have your passport...

    • 6 Reply
    • 1231 Views
    How to Handle Passports While Travelling Abroad?
comunity img

Join Our Facebook Community of
NRIs/OCIs Like You

Join Community