Alien Registration Number, Explained: The U.S. Immigration A#

This Boundless Immigration article will help you understand the difference between your A-number (A#) and your USCIS case number.

EVERYTHING about USCIS Alien Registration Number [2023]

History of the Green Card in the United States

Alien Registration Number - Where To Find It?

What is USCIS A-Number and where can I find it?

Where to Find Alien Registration Number (or “A-Number”)? - Immihelp

The A-Files National Archives

Alien Registration Number, Explained: The U.S. Immigration A#

Alien Registration Number

Alien Number