The A-Number, or Alien Registration Number, is a unique identifier issued by the U.S. Department of Homeland Security to noncitizens. It serves as a central reference across immigration records, visa, asylum, work authorization, and permanent residency applications. Important: the A-Number is typically not printed on a standard U.S. passport. This article explains where to locate an A-Number on official documents and how to use it in immigration-related processes.
What Is An A-Number
An A-Number is an eight to nine-character identifier that begins with the letter “A” followed by digits. It is assigned to noncitizens who interact with U.S. immigration systems, including those applying for visas, Green Cards, work permits, or asylum. The A-Number ties together records in USCIS, CBP, and other agencies, simplifying case management and status checks. While many travelers may never encounter an A-Number, it is essential for individuals who have undergone immigration proceedings or extended stays in the United States.
A-Number On U.S. Passports
In general, a U.S. passport does not display an A-Number. The passport emphasizes travel details such as the passport number, name, nationality, date of birth, and issuing authority. The A-Number is not a standard field on the front or back cover or data page of a regular U.S. passport. If an individual holds dual citizenship or a complex immigration history, the A-Number may appear on other documents associated with immigration but not on the passport itself.
Where To Find The A-Number On Other Documents
- Green Card (Permanent Resident Card): The A-Number is typically printed on the front of the card and may appear as “A# 0XXXXXXXX” or simply “A XXXXXXX.”
- Employment Authorization Documents (EAD): An A-Number might be listed in the applicant’s personal information section, often near the name and date of birth.
- Immigration or Visa Applications: Applications and approval notices (for example, Form I-130, I-485, or asylum paperwork) frequently reference the A-Number in a prominent position on forms and notices.
- Biometric Service Receipts and Correspondence: USCIS notices, receipt letters, and biometric appointment notices can include the A-Number in the header or within the case details.
- Travel Records and Admissibility Letters: Some official letters or electronic case summaries may list the A-Number for cross-reference.
If a person holds multiple immigration records, the A-Number remains the same across documents. For any document, locating the A-Number usually involves looking for a label such as “A-Number,” “A #,” or a string beginning with a capital A followed by digits.
How To Use The A-Number In Applications
The A-Number is a core identifier when filing or updating immigration cases. When completing forms or communicating with USCIS or consular offices, include the A-Number exactly as it appears on your documents to avoid delays. It helps agencies pull the correct record, reducing the need for repeated verifications. Examples of common uses include:
- Linking a Green Card application to a pending biometric appointment.
- Verifying identity and status when renewing an EAD or applying for a work permit.
- Updating contact information or changing address associated with an immigration case.
- Responding to requests for evidence or notices of action tied to the case file.
For individuals who cannot locate their A-Number, it is often found in USCIS online accounts, biometric appointment notices, or official correspondence. If the A-Number is not visible, contacting the issuing agency or reviewing prior approval notices can help confirm the correct identifier.
Common Questions And Quick Tips
- Q: Is the A-Number the same as a passport number? A: No. The A-Number is an immigration identifier for noncitizens, while the passport number identifies a travel document.
- Q: Can the A-Number be found on a passport card? A: It is unlikely; passport cards typically mirror the same fields as the passport book and do not normally display the A-Number.
- Q: I can’t locate my A-Number. What should I do? A: Check Green Card, EAD, and USCIS notices. If still unavailable, contact USCIS or the relevant immigration authority for guidance.
- Q: Do I need my A-Number for travel? A: For most travelers, the A-Number is not required for routine travel. It becomes essential if immigration processing is involved or a status update is requested.
Tip: Keep a secure digital and physical copy of your A-Number alongside related documents. Use a password-protected digital wallet or a secure filing system to prevent loss or misplacement while ensuring it is readily accessible for renewal, eligibility checks, or agency inquiries.