Foundational Framework: Defining the USCIS Alien Registration Number
The USCIS A-Number is a unique identifier assigned by the Department of Homeland Security to non-citizens, and understanding it is essential for anyone navigating the EB-1 or EB-2 NIW self-petition process. What is my alien registration number, exactly? According to USCIS, the A-Number — formally called the Alien Registration Number — is a 7, 8, …