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What is an A-Number?

The United States Citizenship and Immigration Services (USCIS) assigns a unique identifier called the Alien Registration Number, A-Number, or USCIS Number to non-citizens who are in the United States and have a lawful immigration status. This A-Number, which is a 7, 8, or 9-digit number, helps USCIS keep track of an individual’s immigration history and status. It can be found on important immigration documents such as visas, green cards, and Employment Authorization Documents. So, if you’re a non-citizen in the United States, your A-Number is an important identifier that helps ensure your immigration information is accurately tracked and managed.

This article aims to provide a clear and comprehensive explanation of what an A-number is and how to find out if you have one. Whether you are seeking to apply for a visa, green card, or citizenship, understanding the role of A-numbers in the immigration process will help you stay informed and better navigate the complex landscape of U.S. immigration.

Where can I find my A-number?

You can find your Alien Registration Number (A-Number) on several immigration documents, such as:

  1. Visa Stamp: The A-Number can be located on a visa stamp and is shown as the red number in the lower right-hand corner. If the A-Number on the visa stamp is fewer than 9 digits, a zero is inserted after the “A” and before the first digit to create a 9-digit number.

    Sample US Visa page inside a foreign passport
  1. Green Card: If you are a lawful permanent resident, your A-Number will be included on the front of your green card. The USCIS# found on a Permanent Resident card is the A-Number .

  1. Employment Authorization Document (EAD): If you have been authorized to work in the United States, your A-Number will be included on the front of your EAD. The USCIS# found on a Permanent Resident card is the A-Number .




  2. Check previous communications from USCIS: If you have corresponded with USCIS in the past, your A-Number may be included in any communications you received from the agency. This could include an Immigrant Data Summary, USCIS Immigrant Fee Handout, or Form I-797.

What if I have more than One A-Number? 

It’s not uncommon for USCIS to issue multiple A-numbers to individuals over time. When completing immigration forms, it’s important to list all A-numbers that have been issued. While individuals may have multiple A-numbers, the most recent one issued is typically considered their “primary” A-number and should be used.

Not sure if you have an A-Number? 

If you are still determining whether you have an A-Number or need assistance in finding it, you can contact USCIS customer service for assistance. Call 1-800-375-5283 or visit https://www.uscis.gov/ to use their live chat via Ask Emma. 

If you are a non-citizen or permanent resident, it is possible and completely normal that you do not have an A-Number, and you can leave that part blank in the immigration forms.

Conclusion:

In conclusion, the Alien Registration Number, A-Number, or USCIS Number is an identifier for non-citizens who are in the United States and have a lawful immigration status. If you have been issued an A-number, it is important to keep track of your A-Number(s) and ensure that it is correctly included on all immigration documents. Doing so helps USCIS track and manage your immigration records. If you are unsure whether or not you have been assigned an A-Number, it is recommended to contact USCIS customer service to inquire about your immigration record. 

If you have questions or concerns about your A-Number or any other aspect of your immigration status, we encourage you to reach out to our team of experienced immigration professionals. Our platform provides a comprehensive suite of tools and resources that can help simplify the immigration process and put you on the path to success. 

With SimpleCitizen by your side, you can achieve your immigration goals and build a future in the United States. We may be able to help prepare your immigration application! Get started today. We’re happy you’re here!

Updated on May 25, 2023

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