Your Alien Number (A-Number) is a unique 8-9 digit identification number assigned by the DHS to non-citizens. It sometimes begins with a letter A. The location depends on the type of immigration document you have.
1. Notice of Action (Form I-797C)
Some versions of the Notice of Action may contain your alien registration number. On the I-797C, the A-Number is located in the top right of the document next to USCIS#.
2. Employment Authorization Document (EAD Card)
If you do not have a green card, you may find your alien registration number on an employment authorization document (work permit). The A-Number is listed underneath USCIS#.
3. Immigrant Visa
Your immigrant visa (visa stamp or visa foil) is found in your passport. The A-Number is identified as the "Registration Number" in the top right portion of the visa stamp.
4. Immigrant Data Summary
If you applied for your green card through consular processing (at a U.S. embassy or consulate), you probably had an Immigrant Data Summary stapled to the front of your immigrant visa package. The A-Number is located at the top of the document.
5. USCIS Immigrant Fee Handout
If you applied through consular processing, the immigration officer may have given you a USCIS Immigrant Fee handout. This document includes your A-Number in the top right corner.
6. Green Card (Permanent Resident Card)
Your alien registration number appears on the front of the card. You can also find it embedded in the characters on the back. Look for the number listed below the label USCIS#.
Can't Find Your A-Number?
If it is not on any of the documents above, try these options:
- Review the immigration documents you received when you entered the United States
- Check past applications or forms you submitted to USCIS
- Look through copies of your visa or passport stamps
- Review older USCIS notices (Form I-797) or approval letters
- Log into your USCIS online account
- Request a copy of your immigration file using Form G-639 (FOIA)
Need additional help? Contact USCIS directly at 1-800-375-5283.