Oct 2, 2025 · Discover what an alien registration number (A‑Number) is, how to find it, and when USCIS requires it on immigration forms.

Aug 6, 2025 · An Alien Registration Number—also called an A-Number—is a seven-to-nine-digit number assigned to green card holders by the Department of Homeland Security. Typically, nonimmigrants in …

What is an Alien Registration Number? Your Alien Registration Number is a unique identifier provided by the U.S. government to non-citizens who are seeking permanent residency. It consists of 7 to 9 digits …

Aug 23, 2021 · It is not given to all the foreigners, who apply for a petition or to get a benefit from USCIS. In this article, we look at what is A-Number, how to find it, and samples of where you can find …

Jun 25, 2025 · In this guide, we’ll break down everything you need to know about the alien registration number, what it is, who gets one, and exactly where to find your A-Number on official documents like …

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

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. …

Aug 20, 2025 · An alien number, commonly known as ‘A number’ is assigned to each person who intends to immigrate to the USA. This 7 to 9-digit number, prefixed with the letter ‘A’ can be found in …

One of the most common points of confusion is that it is sometimes labeled “A#”, “Alien Number”, or simply “USCIS #”. The table below breaks down where to find it on the most common forms.

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 …